[Code of Federal Regulations]
[Title 40, Volume 11]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR63.1261]

[Page 171-208]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES--Table of Contents
 
 Subpart GGG--National Emission Standards for Pharmaceuticals Production
 
Sec. 63.1261  Delegation of authority.

    (a) In delegating implementation and enforcement authority to a 
State under Sec. 112(d) of the Clean Air Act, the authorities contained in 
paragraph (b) of this section shall be retained by the Administrator and 
not transferred to a State.
    (b) The authority conferred in Sec. 63.177; the authority to approve 
applications for determination of equivalent means of emission 
limitation; and the authority to approve alternative test methods shall 
not be delegated to any State.

    Effective Date Note: At 68 FR 37356, June 23, 2003, Sec. 63.1261 was 
revised effective August 22, 2003. For the convenience of the user, the 
revised text is set forth as follows:

Sec. 63.1261  Implementation and enforcement.

    (a) This subpart can be implemented and enforced by the U.S. EPA, or 
a delegated authority such as the applicable State, local, or Tribal 
agency. If the U.S. EPA Administrator has delegated authority to a 
State, local, or Tribal agency, then that agency, in addition to the 
U.S. EPA, has the authority to implement and enforce this subpart. 
Contact the applicable U.S. EPA Regional Office to find out if 
implementation and enforcement of this subpart is delegated to a State, 
local, or Tribal agency.
    (b) In delegating implementation and enforcement authority of this 
subpart to a State, local, or Tribal agency under subpart E of this 
part, the authorities contained in paragraph (c) of this section are 
retained by the Administrator of U.S. EPA and cannot be transferred to 
the State, local, or Tribal agency.
    (c) The authorities that cannot be delegated to State, local, or 
Tribal agencies are as specified in paragraphs (c)(1) through (4) of 
this section.
    (1) Approval of alternatives to the requirements in Secs. 63.1250 
and 63.1252 through 63.1256. Where these standards reference another 
subpart, the cited provisions will be delegated according to the 
delegation provisions of the referenced subpart.
    (2) Approval of major alternatives to test methods under Sec. 
63.7(e)(2)(ii) and (f), as defined in Sec. 63.90, and as required in this 
subpart.

[[Page 172]]

    (3) Approval of major alternatives to monitoring under Sec. 63.8(f), as 
defined in Sec. 63.90, and as required in this subpart.
    (4) Approval of major alternatives to recordkeeping and reporting 
under Sec. 63.10(f), as defined in Sec. 63.90, and as required in this 
subpart.

 Table 1 to Subpart GGG of Part 63--General Provisions Applicability To 
                               Subpart GGG

----------------------------------------------------------------------------------------------------------------
                                                                  Applies to subpart
   General provisions reference       Summary of requirements            GGG                    Comments
----------------------------------------------------------------------------------------------------------------
63.1(a)(1)........................  General applicability of    Yes..................  Additional terms defined
                                     the General Provisions.                            in Sec. 63.1251; when
                                                                                        overlap between subparts
                                                                                        A and GGG of this part,
                                                                                        subpart GGG takes
                                                                                        precedence.
63.1(a)(2-7)......................  ..........................  Yes                    .........................
63.1(a)(8)........................  ..........................  No...................  Discusses state programs.
63.1(a)(9-14).....................  ..........................  Yes                    .........................
63.1(b)(1)........................  Initial applicability       Yes..................  Subpart GGG clarifies the
                                     determination.                                     applicability in Sec.
                                                                                        63.1250.
63.1(b)(2)........................  Title V operating permit--  Yes..................  All major affected
                                     see part 70.                                       sources are required to
                                                                                        obtain a title V permit.
63.1(b)(3)........................  Record of the               Yes..................  All affected sources are
                                     applicability                                      subject to subpart GGG
                                     determination.                                     according to the
                                                                                        applicability definition
                                                                                        of subpart GGG.
63.1(c)(1)........................  Applicability after         Yes..................  Subpart GGG clarifies the
                                     standards are set.                                 applicability of each
                                                                                        paragraph of subpart A
                                                                                        to sources subject to
                                                                                        subpart GGG.
63.1(c)(2)........................  Title V permit requirement  No...................  All major affected
                                                                                        sources are required to
                                                                                        obtain a title V permit.
                                                                                        Area sources are not
                                                                                        subject to subpart GGG.
63.1(c)(3)........................  Reserved                    .....................  .........................
63.1(c)(4)........................  Requirements for existing   Yes                    .........................
                                     source that obtains an
                                     extension of compliance.
Sec. 63.1(c)(5)......................  Notification requirements   Yes                    .........................
                                     for an area source that
                                     increases HAP emissions
                                     to major source levels.
63.1(d)...........................  [Reserved]................  NA
63.1(e)...........................  Applicability of permit     Yes
                                     program before a relevant
                                     standard has been set.
63.2..............................  Definitions...............  Yes..................  Additional terms defined
                                                                                        in Sec. 63.1251; when
                                                                                        overlap between subparts
                                                                                        A and GGG of this part
                                                                                        occurs, subpart GGG
                                                                                        takes precedence.
63.3..............................  Units and abbreviations...  Yes..................  Other units used in
                                                                                        subpart GGG are defined
                                                                                        in that subpart.
63.4..............................  Prohibited activities.....  Yes
63.5(a)...........................  Construction and            Yes..................  Except replace the terms
                                     reconstruction--                                   ``source'' and
                                     applicability.                                     ``stationary source''
                                                                                        with ``affected
                                                                                        source''.
63.5(b)(1)........................  Upon construction,          Yes
                                     relevant standards for
                                     new sources.
63.5(b)(2)........................  [Reserved]................  NA
63.5(b)(3)........................  New construction/           Yes..................  Except for changes and
                                     reconstruction.                                    additions authorized
                                                                                        under Sec. 52.2454 of this
                                                                                        title. However, the
                                                                                        requirement to submit
                                                                                        the Precompliance report
                                                                                        at least 90 days before
                                                                                        the compliance date
                                                                                        still applies.
63.5(b)(4)........................  Construction/               Yes
                                     reconstruction
                                     notification.
63.5(b)(5)........................  Construction/               Yes
                                     reconstruction compliance.
63.5(b)(6)........................  Equipment addition or       Yes
                                     process change.
63.5(c)...........................  [Reserved]................  NA
63.5(d)...........................  Application for approval    Yes..................  Except for certain
                                     of construction/                                   provisions identified in
                                     reconstruction.                                    63.1259(a)(5)
Sec. 63.5(e).........................  Construction/               Yes                    .........................
                                     reconstruction approval.
63.5(f)...........................  Construction/               Yes..................  Except replace ``source''
                                     reconstruction approval                            with ``affected
                                     based on prior State                               source''.
                                     review..
63.6(a)(1)........................  Compliance with standards   Yes
                                     and maintenance
                                     requirements.
63.6(a)(2)........................  Requirements for area       Yes
                                     source that increases
                                     emissions to become major.
63.6(b)(1-2)......................  Compliance dates for new    No...................  Subpart GGG specifies
                                     and reconstructed sources.                         compliance dates.

[[Page 173]]


63.6(b)(3-6)......................  Compliance dates for area   Yes
                                     sources that become major
                                     sources.
63.6 (b)(7).......................  Compliance dates for new    No...................  Subpart GGG specifies NS
                                     sources resulting from                             applicability and
                                     new unaffected area                                compliance dates
                                     sources becoming subject
                                     to standards.
63.6(c)...........................  Compliance dates for        Yes..................  Except replace ``source''
                                     existing sources.                                  with ``affected
                                                                                        source''. Subpart GGG
                                                                                        specifies compliance
                                                                                        dates.
63.6(e)...........................  Operation and maintenance   Yes..................  Startup, Shutdown,
                                     requirements.                                      Malfunction Plan
                                                                                        requirements
                                                                                        specifically include
                                                                                        malfunction process,
                                                                                        control and monitoring
                                                                                        equipment.
63.6(f)-(g).......................  Compliance with nonopacity  Yes..................  Except that subpart GGG
                                     and alternative                                    specifies performance
                                     nonopacity emission                                test conditions.
                                     standards.
63.6(h)...........................  Opacity and visible         No...................  Subpart GGG does not
                                     emission standards.                                contain any opacity or
                                                                                        visible emission
                                                                                        standards.
Sec. 63.6(i)(1) through (7)..........  Requests for compliance     No...................  Sec. 63.1250(f)(6) specifies
                                     extensions.                                        provisions for
                                                                                        compliance extensions.
Sec. 63.6(i)(8) through (14).........  Approval of compliance      Yes..................  Except references to Sec.
                                     extensions.                                        63.6(i)(4) through (6)
                                                                                        mean Sec. 63.1250(f)(6).
63.6(j)...........................  Exemption from compliance   Yes
                                     with emission standards.
63.7(a)(1)........................  Performance testing         Yes..................  Subpart GGG also
                                     requirements.                                      specifies required
                                                                                        testing and compliance
                                                                                        procedures.
63.7(a)(2)(i)-(ix)................  ..........................  Yes..................  Except substitute ``150
                                                                                        days'' instead of ``180
                                                                                        days.''
63.7(a)(3)........................  ..........................  Yes
63.7(b)(1)........................  Notification of             Yes
                                     performance test.
63.7(b)(2)........................  Notification of delay in    Yes
                                     conducting a scheduled
                                     performance test.
63.7(c)...........................  Quality assurance program.  Yes..................  Except that the test plan
                                                                                        must be submitted with
                                                                                        the notification of the
                                                                                        performance test.
63.7(d)...........................  Performance testing         Yes..................  Except replace ``source''
                                     facilities..                                       with ``affected
                                                                                        source''.
63.7(e)...........................  Conduct of performance      Yes..................  Subpart GGG also contains
                                     tests..                                            test methods and
                                                                                        procedures specific to
                                                                                        pharmaceutical sources.
63.7(f)...........................  Use of alternative test     Yes
                                     method.
63.7(g)...........................  Data analysis,              Yes
                                     recordkeeping, and
                                     reporting.
63.7(h)...........................  Waiver of performance       Yes
                                     tests.
63.8(a)...........................  Monitoring requirements...  Yes..................  See Sec. 63.1258.
63.8(b)(1)........................  Conduct of monitoring.....  Yes
63.8(b)(2)........................  CMS and combined effluents  No...................  Sec. 63.1258 of subpart GGG
                                                                                        provides specific CMS
                                                                                        requirements.
63.8(b)(3)-(c)(4).................  CMS requirements..........  Yes..................  Sec. 63.1259 also specifies
                                                                                        recordkeeping for CMS.
63.8(c)(5)........................  COMS operation              No...................
                                     requirements.
63.8 (c)(6)-(8)...................  CMS calibration and         No...................  Calibration procedures
                                     malfunction provisions.                            are provided in Sec.
                                                                                        63.1258.
63.8(d)...........................  CMS quality control         Yes
                                     program.
63.8(e)(1)........................  Performance evaluations of  Yes
                                     CMS.
63.8(e)(2)........................  Notification of             Yes                    .........................
                                     performance evaluation.
63.8(e)(3-4)......................  CMS requirements/           Yes                    .........................
                                     alternatives.
Sec. 63.8(e)(5)(i)...................  Reporting performance       Yes..................  See Sec. 63.1260(a).
                                     evaluation results.
63.1260 (a).......................
63.8(e)(5)(ii)....................  Results of COMS             No...................  Subpart GGG does not
                                     performance evaluation.                            contain any opacity or
                                                                                        visible emission
                                                                                        standards.
63.8(f)-(g).......................  Alternative monitoring      Yes                    .........................
                                     method/reduction of
                                     monitoring data.
63.9(a)-(d).......................  Notification requirements-- Yes..................  Sec. 63.1260 (b) also
                                     Applicability and general                          specifies initial
                                     information.                                       notification
                                                                                        requirement.
63.9(e)...........................  Notification of             Yes..................  Sec. 63.1260 (l) also
                                     performance test.                                  specifies notification
                                                                                        requirement for
                                                                                        performance test.
63.9(f)...........................  Notification of opacity     No...................  Subpart GGG does not
                                     and visible emissions                              contain any opacity or
                                     observations.                                      visible emission
                                                                                        standards.
63.9(g)(1)........................  Additional notification     Yes..................  Sec. 63.1260 (d) also
                                     requirements for sources                           specifies notification
                                     with CMS.                                          requirement for
                                                                                        performance evaluation.

[[Page 174]]


63.9(g)(2)........................  Notification of compliance  No...................  Subpart GGG does not
                                     with opacity emission                              contain any opacity or
                                     standard.                                          visible emission
                                                                                        standards.
63.9(g)(3)........................  Notification that           Yes..................  Sec. 63.1260 (d) also
                                     criterion to continue use                          specifies notification
                                     of alternative to                                  requirement for
                                     relative accuracy testing                          performance evaluation.
                                     has been exceeded.
63.9(h)...........................  Notification of compliance  Yes..................  Specified in Sec.
                                     status.                                            63.1260(f). Due 150 days
                                                                                        after compliance date.
63.9(i)...........................  Adjustment to time periods  Yes                    .........................
                                     or postmark deadlines for
                                     submittal and review of
                                     required communications.
63.9(j)...........................  Change in information       No...................  Subpart GGG specifies
                                     provided.                                          procedures for
                                                                                        notification of changes.
63.10(a)..........................  Recordkeeping requirements  Yes..................
63.1259...........................
63.10(b)(1).......................  Records retention.........  Yes..................  Also stated in Sec. 63.1259.
63.10(b)(2).......................  Information and             No...................  Subpart GGG specifies
                                     documentation to support                           recordkeeping
                                     notifications.                                     requirements.
63.10(b)(3).......................  Records retention for       Yes..................  Also stated in Sec. 63.1259
                                     sources not subject to                             (a)(2).
                                     relevant standard.
63.10(c)-(d)(2)...................  Other recordkeeping and     Yes..................  Also stated in Sec. 63.1259
                                     reporting provisions.                              (a)(4).
63.10(d)(3).......................  Reporting results of        No...................  Subpart GGG does not
                                     opacity or visible                                 include any opacity or
                                     emissions observations.                            visible emission
                                                                                        standards.
63.10(d)(4-5).....................  Other recordkeeping and     Yes..................
                                     reporting provisions.
63.10(e)..........................  Additional CMS reporting    Yes..................
                                     requirements.
63.10(f)..........................  Waiver of recordkeeping or  Yes..................
                                     reporting requirements..
63.11.............................  Control device              Yes..................
                                     requirements for flares.
63.12.............................  State authority and         Yes..................  See Sec. 63.1261.
                                     delegations.
63.13.............................  Addresses of State air      Yes..................
                                     pollution control
                                     agencies.
63.14.............................  Incorporations by           Yes..................
                                     reference.
63.15.............................  Availability of             Yes..................
                                     information and
                                     confidentiality.
----------------------------------------------------------------------------------------------------------------


[63 FR 50326, Sept. 21, 1998, as amended at 65 FR 52614, Aug. 29, 2000; 
66 FR 40136, Aug. 2, 2001]

        Table 2 to Subpart GGG of Part 63--Partially Soluble HAP

1,1,1-Trichloroethane (methyl            Chloroform
 chloroform).
1,1,2,2-Tetrachloroethane..............  Chloromethane
1,1,2-Trichloroethane..................  Chloroprene
1,1-Dichloroethylene (vinylidene         Cumene
 chloride).
1,2-Dibromoethane......................  Dichloroethyl ether
1,2-Dichloroethane (ethylene             Dinitrophenol
 dichloride).
1,2-Dichloropropane....................  Epichlorohydrin
1,3-Dichloropropene....................  Ethyl acrylate
2,4,5-Trichlorophenol..................  Ethylbenzene
2-Butanone (mek).......................  Ethylene oxide
1,4-Dichlorobenzene....................  Hexachlorobenzene
2-Nitropropane.........................  Hexachlorobutadiene
4-Methyl-2-pentanone (MIBK)............  Hexachloroethane
Acetaldehyde...........................  Methyl methacrylate
Acrolein...............................  Methyl-t-butyl ether
Acrylonitrile..........................  Methylene chloride
Allyl chloride.........................  N,N-dimethylaniline
Benzene................................  Propionaldehyde
Benzyl chloride........................  Propylene oxide
Biphenyl...............................  Styrene
Bromoform (tribromomethane)............  Tetrachloroethene
                                          (perchloroethylene)
Bromomethane...........................  Tetrachloromethane (carbon
                                          tetrachloride
Butadiene..............................  Toluene
Carbon disulfide.......................  Trichlorobenzene (1,2,4-)
Chlorobenzene..........................  Trichloroethylene
Chloroethane (ethyl chloride)..........  Trimethylpentane
Vinyl acetate..........................  Xylene (p)
Vinyl chloride.........................  N-hexane
Xylene (m).............................
Xylene (o).............................
------------------------------------------------------------------------


[66 FR 40136, Aug. 2, 2001]

[[Page 175]]

             Table 3 to Subpart GGG of Part 63--Soluble HAP

------------------------------------------------------------------------
                                Compound
-------------------------------------------------------------------------
1,1-Dimethylhydrazine.
1,4-Dioxane.
Acetonitrile.
Acetophenone.
Diethyl sulfate.
Dimethyl sulfate.
Dinitrotoluene.
Ethylene glycol dimethyl ether.
Ethylene glycol monobutyl ether acetate.
Ethylene glycol monomethyl ether acetate.
Isophorone.
Methanol (methyl alcohol).
Nitrobenzene.
Toluidene.
Triethylamine.
------------------------------------------------------------------------


[66 FR 40137, Aug. 2, 2001]

 Table 4 to Subpart GGG of Part 63--Monitoring Requirements for Control 
                               Devices \a\

----------------------------------------------------------------------------------------------------------------
                                         Monitoring equipment       Parameters to be
            Control device                     required                monitored                Frequency
----------------------------------------------------------------------------------------------------------------
All control devices..................  1. Flow indicator        1. Presence of flow      Hourly records of
                                        installed at all         diverted from the        whether the flow
                                        bypass lines to the      control device to the    indicator was
                                        atmosphere and           atmosphere or.           operating and whether
                                        equipped with                                     a diversion was
                                        continuous recorder or.                           detected at any time
                                                                                          during each hour.
                                       2. Valves sealed closed  2. Monthly inspections   Monthly.
                                        with car-seal or lock-   of sealed valves.
                                        and-key configuration.
Scrubber.............................  Liquid flow rate or      1. Liquid flow rate      1. Every 15 minutes.
                                        pressure drop mounting   into or out of the
                                        device. Also a pH        scrubber or the
                                        monitor if the           pressure drop across
                                        scrubber is used to      the scrubber.
                                        control acid emissions.
                                                                2. pH of effluent        2. Once a day.
                                                                 scrubber liquid.
Thermal incinerator..................  Temperature monitoring   Firebox temperature....  Every 15 minutes.
                                        device installed in
                                        firebox or in ductwork
                                        immediately downstream
                                        of firebox b.
Catalytic incinerator................  Temperature monitoring   Temperature difference   Every 15 minutes.
                                        device installed in      across catalyst bed.
                                        gas stream immediately
                                        before and after
                                        catalyst bed.
Flare................................  Heat sensing device      Presence of a flame at   Every 15 minutes.
                                        installed at the pilot   the pilot light.
                                        light.
Boiler or process heater <44 mega      Temperature monitoring   Combustion temperature.  Every 15 minutes.
 watts and vent stream is not mixed     device installed in
 with the primary fuel.                 firebox b.
Condenser............................  Temperature monitoring   Condenser exit (product  Every 15 minutes.
                                        device installed at      side) temperature.
                                        condenser exit.
Carbon adsorber (nonregenerative)....  None...................  Operating time since     N/A.
                                                                 last replacement.
Carbon adsorber (regenerative).......  Stream flow monitoring   1. Total regeneration    1. For each
                                        device, and.             stream mass or           regeneration cycle,
                                                                 volumetric flow during   record the total
                                                                 carbon bed               regeneration stream
                                                                 regeneration cycle(s).   mass or volumetric
                                                                                          flow.
                                       Carbon bed temperature   2. Temperature of        2. For each
                                        monitoring device.       carbon bed after         regeneration cycle,
                                                                 regeneration.            record the maximum
                                                                                          carbon bed-
                                                                                          temperature.
                                                                3. Temperature of        3. Within 15 minutes of
                                                                 carbon bed within 15     completing any cooling
                                                                 minutes of completing    cycle, record the
                                                                 any cooling cycle(s).    carbon bed
                                                                                          temperature.
                                                                4. Operating time since  4. Operating time to be
                                                                 end of last              based on worst-case
                                                                 regeneration.            conditions.
                                                                5. Check for bed         5. Yearly.
                                                                 poisoning.
----------------------------------------------------------------------------------------------------------------
a As an alternative to the monitoring requirements specified in this table, the owner or operator may use a CEM
  meeting the requirements of Performance Specifications 8 or 9 of appendix B of part 60 to monitor TOC every 15
  minutes.
b Monitor may be installed in the firebox or in the ductwork immediately downstream of the firebox before any
  substantial heat exchange is encountered.


[[Page 176]]

  Table 5 to Subpart GGG of Part 63--Control Requirements for Items of 
            Equipment That Meet the Criteria of Sec. 63.1252(f)

------------------------------------------------------------------------
      Item of equipment                 Control requirement \a\
------------------------------------------------------------------------
Drain or drain hub...........  (a) Tightly fitting solid cover (TFSC);
                                or
                               (b) TFSC with a vent to either a process
                                or to a control device meeting the
                                requirements of Sec. 63.1256(h)(2); or
                               (c) Water seal with submerged discharge
                                or barrier to protect discharge from
                                wind.
Manhole b....................  (a) TFSC; or
                               (b) TSFC with a vent to either a process
                                or to a control device meeting the
                                requirements of Sec. 63.1256(h)(2); or
                               (c) If the item is vented to the
                                atmosphere, use a TFSC with a properly
                                operating water seal at the entrance or
                                exit to the item to restrict ventilation
                                in the collection system. The vent pipe
                                shall be at least 90 cm in length and
                                not exceeding 10.2 cm in nominal inside
                                diameter.
Lift station.................  (a) TFSC; or
                               (b) TFSC with a vent to either a process
                                or to a control device meeting the
                                requirements of Sec. 63.1256(h)(2); or
                               (c) If the lift station is vented to the
                                atmosphere, use a TFSC with a properly
                                operating water seal at the entrance or
                                exit to the item to restrict ventilation
                                in the collection system. The vent pipe
                                shall be at least 90 cm in length and
                                not exceeding 10.2 cm in nominal inside
                                diameter. The lift station shall be
                                level controlled to minimize changes in
                                the liquid level.
Trench.......................  (a) TFSC; or
                               (b) TFSC with a vent to either a process
                                or to a control device meeting the
                                requirements of Sec. 63.1256(h)(2); or
                               (c) If the item is vented to the
                                atmosphere, use a TFSC with a properly
                                operating water seal at the entrance or
                                exit to the item to restrict ventilation
                                in the collection system. The vent pipe
                                shall be at least 90 cm in length and
                                not exceeding 10.2 cm in nominal inside
                                diameter.
Pipe.........................  Each pipe shall have no visible gaps in
                                joints, seals, or other emission
                                interfaces.
Oil/Water separator..........  (a) Equip with a fixed roof and route
                                vapors to a process or equip with a
                                closed-vent system that routes vapors to
                                a control device meeting the
                                requirements of Sec. 63.1256(h)(2); or
                               (b) Equip with a floating roof that meets
                                the equipment specifications of Sec.
                                60.693(a)(1)(i), (a)(1)(ii), (a)(2),
                                (a)(3), and (a)(4).
Tank.........................  Maintain a fixed roof and consider vents
                                as process vents.c
------------------------------------------------------------------------
\a\ Where a tightly fitting solid cover is required, it shall be
  maintained with no visible gaps or openings, except during periods of
  sampling, inspection, or maintenance.
\b\ Manhole includes sumps and other points of access to a conveyance
  system.
\c\ A fixed roof may have openings necessary for proper venting of the
  tank, such as pressure/vacuum vent, j-pipe vent.

[65 FR 52616, Aug. 29, 2000]

 Table 6 to Subpart GGG of Part 63--Wastewater--Compliance Options for 
                            Wastewaster Tanks

------------------------------------------------------------------------
                               Maximum true
       Capacity, m\3\              vapor         Control requirements
                               pressure, kPa
------------------------------------------------------------------------
<75.........................  ..............  Sec. 63.1256(b)(1).
>75 and <151................           <13.1  Sec. 63.1256(b)(1).
                                       >13.1  Sec. 63.1256(b)(2).
>151........................            <5.2  Sec. 63.1256(b)(1).
                                        >5.2  Sec. 63.1256(b)(2).
------------------------------------------------------------------------

Table 7 to Subpart GGG of Part 63--Wastewater--Inspection and Monitoring 
                 Requirements for Waste Management Units

----------------------------------------------------------------------------------------------------------------
                                            Inspection or       Frequency of inspection
            To comply with              monitoring requirement       or monitoring                Method
----------------------------------------------------------------------------------------------------------------
TANKS:
    63.1256(b)(3)(i).................  Inspect fixed roof and   Initially Semiannually.  Visual.
                                        all openings for leaks.
    63.1256(b)(4)....................  Inspect floating roof    See Secs.  63.120(a)(2)  Visual.
                                        in accordance with       and (a)(3).
                                        Secs.  63.120(a)(2)
                                        and (a)(3).
    63.1256(b)(5)....................  Measure floating roof    .......................  See Sec. 63.120(b)(2)(i)
                                        seal gaps in                                      through (b)(4).
                                        accordance with Secs.
                                        63.120(b)(2)(i)
                                        through (b)(4).
                                       --Primary seal gaps....  Initially Once every 5   .......................
                                                                 years (annually if no
                                                                 secondary seal).
                                       --Secondary seal gaps..  Initially Semiannually.  .......................

[[Page 177]]


63.1256(b)(7)........................  Inspect wastewater tank  Initially Semiannually.  Visual.
63.1256(b)(8)........................   for control equipment
                                        failures and improper
                                        work practices.
SURFACE IMPOUNDMENTS:
    63.1256(c)(1)(i).................  Inspect cover and all    Initially Semiannually.  Visual.
                                        openings for leaks.
    63.1256(c)(2)....................  Inspect surface          Initially Semiannually.  Visual.
                                        impoundment for
                                        control equipment
                                        failures and improper
                                        work practices.
CONTAINERS:
    63.1256(d)(1)(i).................  Inspect cover and all    Initially Semiannually.  Visual.
    63.1256(d)(1)(ii)................   openings for leaks.
    63.1256(d)(3)(i).................  Inspect enclosure and    Initially Semiannually.  Visual.
                                        all openings for leaks.
    63.1256(d)(4)....................  Inspect container for    Initially Semiannually.  Visual.
                                        control equipment
                                        failures and improper
                                        work practices.
INDIVIDUAL DRAIN SYSTEMS a:
    63.1256(e)(1)(i).................  Inspect cover and all    Initially Semiannually.  Visual.
                                        openings to ensure
                                        there are no gaps,
                                        cracks, or holes.
    63.1256(e)(2)....................  Inspect individual       Initially Semiannually.  Visual.
                                        drain system for
                                        control equipment
                                        failures and improper
                                        work practices.
    63.1256(e)(4)(i).................  Verify that sufficient   Initially Semiannually.  Visual.
                                        water is present to
                                        properly maintain
                                        integrity of water
                                        seals.
    63.1256(e)(4)(ii)................  Inspect all drains       Initially Semiannually.  Visual.
    63.1256(e)(5)(i).................   using tightly-fitted
                                        caps or plugs to
                                        ensure caps and plugs
                                        are in place and
                                        properly installed.
    63.1256(e)(5)(ii)................  Inspect all junction     Initially Semiannually.  Visual or smoke test or
                                        boxes to ensure covers                            other means as
                                        are in place and have                             specified.
                                        no visible gaps,
                                        cracks, or holes.
    63.1256(e)(5)(iii)...............  Inspect unburied         Initially Semiannually.  Visual.
                                        portion of all sewer
                                        lines for cracks and
                                        gaps.
OIL-WATER SEPARATORS:
    63.1256(f)(2)(i).................  Inspect fixed roof and   Initially Semiannually.  Visual.
                                        all openings for leaks.
    63.1256(f)(3)....................  Measure floating roof    Initially b............  See 40 CFR
                                        seal gaps in                                      60.696(d)(1).
                                        accordance with 40 CFR
                                        60.696(d)(1).
                                       --Primary seal gaps....  Once every 5 years.....  .......................
    63.1256(f)(3)....................  --Secondary seal gaps..  Initially b Annually.
    63.1256(f)(4)....................  Inspect oil-water        Initially Semiannually.  Visual.
                                        separator for control
                                        equipment failures and
                                        improper work
                                        practices.
----------------------------------------------------------------------------------------------------------------
a As specified in Sec. 63.1256(e), the owner or operator shall comply with either the requirements of Sec.
  63.1256(e)(1) and (2) or Sec. 63.1256(e)(4) and (5).
b Within 60 days of installation as specified in Sec. 63.1256(f)(3).

Table 8 to Subpart GGG of Part 63--Fraction Measured (Fm) for 
                   HAP Compounds in Wastewater Streams

------------------------------------------------------------------------
              Chemical name                  CAS No. a          Fm
------------------------------------------------------------------------
Acetaldehyde............................           75070         1.00
Acetonitrile............................           75058         0.99
Acetophenone............................           98862         0.31
Acrolein................................          107028         1.00
Acrylonitrile...........................          107131         1.00
Allyl chloride..........................          107051         1.00
Benzene.................................           71432         1.00
Benzyl chloride.........................          100447         1.00
Biphenyl................................           92524         0.86

[[Page 178]]


Bromoform...............................           75252         1.00
Butadiene (1,3-)........................          106990         1.00
Carbon disulfide........................           75150         1.00
Carbon tetrachloride....................           56235         1.00
Chlorobenzene...........................          108907         0.96
Chloroform..............................           67663         1.00
Chloroprene (2-Chloro-1,3-butadiene)....          126998         1.00
Cumene..................................           98828         1.00
Dichlorobenzene (p-1,4-)................          106467         1.00
Dichloroethane (1,2-) (Ethylene                   107062         1.00
 dichloride)............................
Dichloroethylether (Bis(2-Chloroethyl             111444         0.76
 ether))................................
Dichloropropene (1,3-)..................          542756         1.00
Diethyl sulfate.........................           64675         0.0025
Dimethyl sulfate........................           77781         0.086
Dimethylaniline (N,N-)..................          121697         0.00080
Dimethylhydrazine (1,1-)................           57147         0.38
Dinitrophenol (2,4-)....................           51285         0.0077
Dinitrotoluene (2,4-)...................          121142         0.085
Dioxane (1,4-) (1,4-Diethyleneoxide)....          123911         0.87
Epichlorohydrin(1-Chloro-2,3-                     106898         0.94
 epoxypropane)..........................
Ethyl acrylate..........................          140885         1.00
Ethylbenzene............................          100414         1.00
Ethyl chloride (Chloroethane)...........           75003         1.00
Ethylene dibromide (Dibromomethane).....          106934         1.00
Ethylene glycol dimethyl ether..........          110714         0.86
Ethylene glycol monobutyl ether acetate.          112072         0.043
Ethylene glycol monomethyl ether acetate          110496         0.093
Ethylene oxide..........................           75218         1.00
Ethylidene dichloride (1,1-                        75343         1.00
 Dichloroethane)........................
Hexachlorobenzene.......................          118741         0.97
Hexachlorobutadiene.....................           87683         0.88
Hexachloroethane........................           67721         0.50
Hexane..................................          110543         1.00
Isophorone..............................           78591         0.47
Methanol................................           67561         0.85
Methyl bromide (Bromomethane)...........           74839         1.00
Methyl chloride (Chloromethane).........           74873         1.00
Methyl ethyl ketone (2-Butanone)........           78933         0.99
Methyl isobutyl ketone (Hexone).........          108101         0.98
Methyl methacrylate.....................           80626         1.00
Methyl tert-butyl ether.................         1634044         1.00
Methylene chloride (Dichloromethane)....           75092         1.00
Naphthalene.............................           91203         0.99
Nitrobenzene............................           98953         0.39
Nitropropane (2-).......................           79469         0.99
Phosgene................................           75445         1.00
Propionaldehyde.........................          123386         1.00
Propylene dichloride (1,2-                         78875         1.00
 Dichloropropane).......................
Propylene oxide.........................           75569         1.00
Styrene.................................          100425         1.00
Tetrachloroethane (1,1,2,2-)............           79345         1.00
Tetrachloroethylene (Perchloroethylene).          127184         1.00
Toluene.................................          108883         1.00
Toluidine (o-)..........................           95534         0.15
Trichlorobenzene (1,2,4-)...............          120821         1.00
Trichloroethane (1,1,1-) (Methyl                   71556         1.00
 chloroform)............................
Trichloroethane (1,1,2-) (Vinyl                    79005         0.98
 Trichloride)...........................
Trichloroethylene.......................           79016         1.00
Trichlorophenol (2,4,5-)................           95954         1.00
Triethylamine...........................          121448         1.00
Trimethylpentane (2,2,4-)...............          540841         1.00
Vinyl acetate...........................          108054         1.00
Vinyl chloride (Chloroethylene).........           75014         1.00
Vinylidene chloride (1,1-                          75354         1.00
 Dichloroethylene)......................
Xylene (m-).............................          108383         1.00
Xylene (o-).............................           95476         1.00
Xylene (p-).............................          106423         1.00
------------------------------------------------------------------------
a CAS numbers refer to the Chemical Abstracts Service registry number
  assigned to specific compounds, isomers, or mixtures of compounds.


[[Page 179]]

   Table 9 to Subpart GGG of Part 63--Default Biorates for Soluble HAP

------------------------------------------------------------------------
                                                          Biorate (K1),
                     Compound name                         L/g MLVSS-hr
------------------------------------------------------------------------
Acetonitrile...........................................            0.100
Acetophenone...........................................            0.538
Diethyl sulfate........................................            0.105
Dimethyl hydrazine(1,1)................................            0.227
Dimethyl sulfate.......................................            0.178
Dinitrotoluene(2,4)....................................            0.784
Dioxane(1,4)...........................................            0.393
Ethylene glycol dimethyl ether.........................            0.364
Ethylene glycol monobutyl ether acetate................            0.496
Ethylene glycol monomethyl ether acetate...............            0.159
Isophorone.............................................            0.598
Methanol...............................................                a
Nitrobenzene...........................................            2.300
Toluidine (-0).........................................            0.859
Triethylamine..........................................            1.064
------------------------------------------------------------------------
a For direct dischargers, the default biorate for methanol is 3.5 L/g
  MLVSS-hr; for indirect dischargers, the default biorate for methanol
  is 0.2 L/g MLVSS-hr.


[66 FR 40137, Aug. 2, 2001]

 Subpart HHH--National Emission Standards for Hazardous Air Pollutants 
          From Natural Gas Transmission and Storage Facilities

    Source: 64 FR 32648, June 17, 1999, unless otherwise noted.

Sec. 63.1270  Applicability and designation of affected source.

    (a) This subpart applies to owners and operators of natural gas 
transmission and storage facilities that transport or store natural gas 
prior to entering the pipeline to a local distribution company or to a 
final end user (if there is no local distribution company), and that are 
major sources of hazardous air pollutants (HAP) emissions as defined in 
Sec. 63.1271. Emissions for major source determination purposes can be 
estimated using the maximum natural gas throughput calculated in either 
paragraph (a)(1) or (2) of this section and paragraphs (a)(3) and (4) of 
this section. As an alternative to calculating the maximum natural gas 
throughput, the owner or operator of a new or existing source may use 
the facility design maximum natural gas throughput to estimate the 
maximum potential emissions. Other means to determine the facility's 
major source status are allowed, provided the information is documented 
and recorded to the Administrator's satisfaction. A compressor station 
that transports natural gas prior to the point of custody transfer or to 
a natural gas processing plant (if present) is not considered a part of 
the natural gas transmission and storage source category. A facility 
that is determined to be an area source, but subsequently increases its 
emissions or its potential to emit above the major source levels 
(without first obtaining and complying with other limitations that keep 
its potential to emit HAP below major source levels), and becomes a 
major source, must comply thereafter with all applicable provisions of 
this subpart starting on the applicable compliance date specified in 
paragraph (d) of this section. Nothing in this paragraph is intended to 
preclude a source from limiting its potential to emit through other 
appropriate mechanisms that may be available through the permitting 
authority.
    (1) Facilities that store natural gas or facilities that transport 
and store natural gas shall calculate maximum annual facility natural 
gas throughput using the following equation:
[GRAPHIC] [TIFF OMITTED] TR29JN01.026

Where:


[[Page 180]]


Throughput = Maximum annual facilitywide natural gas throughput in cubic 
          meters per year.
IR max = Maximum facility injection rate in cubic meters per 
          hour.
WR max = Maximum facility withdrawal rate in cubic meters per 
          hour.
8,760 = Maximum hours of operation per year.
    (i)-(iii) [Reserved]
    (2) Facilities that only transport natural gas shall calculate the 
maximum natural gas throughput as the highest annual natural gas 
throughput over the 5 years prior to June 17, 1999, multiplied by a 
factor of 1.2.
    (3) The owner or operator shall maintain records of the annual 
facility natural gas throughput each year and upon request, submit such 
records to the Administrator. If the facility annual natural gas 
throughput increases above the maximum natural gas throughput calculated 
in paragraph (a)(1) or (a)(2) of this section, the maximum natural gas 
throughput must be recalculated using the higher throughput multiplied 
by a factor of 1.2.
    (4) The owner or operator shall determine the maximum values for 
other parameters used to calculate potential emissions as the maximum 
over the same period for which maximum throughput is determined as 
specified in paragraph (a)(1) or (a)(2) of this section. These 
parameters shall be based on an annual average or the highest single 
measured value.
    (b) The affected source is each glycol dehydration unit.
    (c) The owner or operator of a facility that does not contain an 
affected source, as specified in paragraph (b) of this section, is not 
subject to the requirements of this subpart.
    (d) The owner or operator of each affected source shall achieve 
compliance with the provisions of this subpart by the following dates:
    (1) The owner or operator of an affected source, the construction or 
reconstruction of which commenced before February 6, 1998, shall achieve 
compliance with this provisions of the subpart no later than June 17, 
2002 except as provided for in Sec. 63.6(i). The owner or operator of an 
area source, the construction or reconstruction of which commenced 
before February 6, 1998, that increases its emissions of (or its 
potential to emit) HAP such that the source becomes a major source that 
is subject to this subpart shall comply with this subpart 3 years after 
becoming a major source.
    (2) The owner or operator of an affected source, the construction or 
reconstruction of which commences on or after February 6, 1998, shall 
achieve compliance with the provisions of this subpart immediately upon 
initial startup or June 17, 1999, whichever date is later. Area sources, 
the construction or reconstruction of which commences on or after 
February 6, 1998, that become major sources shall comply with the 
provisions of this standard immediately upon becoming a major source.
    (e) An owner or operator of an affected source that is a major 
source or is located at a major source and is subject to the provisions 
of this subpart is also subject to 40 CFR part 70 or part 71 permitting 
requirements.
    (f) Exemptions. A facility with a facilitywide actual annual average 
natural gas throughput less than 28.3 thousand standard cubic meters per 
day, where glycol dehydration units are the only HAP emission source, is 
not subject to the requirements of this subpart. Records shall be 
maintained as required in Sec. 63.10(b)(3).

[64 FR 32648, June 17, 1999, as amended at 66 FR 34555, June 29, 2001; 
66 FR 49300, Sept. 27, 2001; 67 FR 8204, Feb. 22, 2002]

Sec. 63.1271  Definitions.

    All terms used in this subpart shall have the meaning given to them 
in the Clean Air Act, subpart A of this part (General Provisions), and 
in this section. If the same term is defined in subpart A and in this 
section, it shall have the meaning given in this section for purposes of 
this subpart.
    Boiler means an enclosed device using controlled flame combustion 
and having the primary purpose of recovering and exporting thermal 
energy in the form of steam or hot water. Boiler also means any 
industrial furnace as defined in 40 CFR 260.10.
    Closed-vent system means a system that is not open to the atmosphere 
and is composed of piping, ductwork, connections, and if necessary, flow 
inducing devices that transport gas or vapor from an emission point to 
one or more

[[Page 181]]

control devices. If gas or vapor from regulated equipment is routed to a 
process (e.g., to a fuel gas system), the conveyance system shall not be 
considered a closed-vent system and is not subject to closed-vent system 
standards.
    Combustion device means an individual unit of equipment, such as a 
flare, incinerator, process heater, or boiler, used for the combustion 
of organic HAP emissions.
    Compressor station means any permanent combination of compressors 
that move natural gas at increased pressure from fields, in transmission 
pipelines, or into storage.
    Continuous recorder means a data recording device that either 
records an instantaneous data value at least once every hour or records 
hourly or more frequent block average values.
    Control device means any equipment used for recovering or oxidizing 
HAP or volatile organic compound (VOC) vapors. Such equipment includes, 
but is not limited to, absorbers, carbon absorbers, condensers, 
incinerators, flares, boilers, and process heaters. For the purposes of 
this subpart, if gas or vapor from regulated equipment is used, reused 
(i.e., injected into the flame zone of an enclosed combustion device), 
returned back to the process, or sold, then the recovery system used, 
including piping, connections, and flow inducing devices, is not 
considered to be a control device or a closed-vent system.
    Custody transfer means the transfer of natural gas after processing 
and/or treatment in the production operations to pipelines or any other 
forms of transportation.
    Facility means any grouping of equipment where natural gas is 
processed, compressed, or stored prior to entering a pipeline to a local 
distribution company or (if there is no local distribution company) to a 
final end user. Examples of a facility for this source category are: an 
underground natural gas storage operation; or a natural gas compressor 
station that receives natural gas via pipeline, from an underground 
natural gas storage operation, or from a natural gas processing plant. 
The emission points associated with these phases include, but are not 
limited to, process vents. Processes that may have vents include, but 
are not limited to, dehydration and compressor station engines.
    Facility, for the purpose of a major source determination, means 
natural gas transmission and storage equipment that is located inside 
the boundaries of an individual surface site (as defined in this 
section) and is connected by ancillary equipment, such as gas flow lines 
or power lines. Equipment that is part of a facility will typically be 
located within close proximity to other equipment located at the same 
facility. Natural gas transmission and storage equipment or groupings of 
equipment located on different gas leases, mineral fee tracts, lease 
tracts, subsurface unit areas, surface fee tracts, or surface lease 
tracts shall not be considered part of the same facility.
    Flame zone means the portion of the combustion chamber in a 
combustion device occupied by the flame envelope.
    Flash tank. See the definition for gas-condensate-glycol (GCG) 
separator.
    Flow indicator means a device which indicates whether gas flow is 
present in a line or whether the valve position would allow gas flow to 
be present in a line.
    Gas-condensate-glycol (GCG) separator means a two-or three-phase 
separator through which the ``rich'' glycol stream of a glycol 
dehydration unit is passed to remove entrained gas and hydrocarbon 
liquid. The GCG separator is commonly referred to as a flash separator 
or flash tank.
    Glycol dehydration unit means a device in which a liquid glycol 
(including, but not limited to, ethylene glycol, diethylene glycol, or 
triethylene glycol) absorbent directly contacts a natural gas stream and 
absorbs water in a contact tower or absorption column (absorber). The 
glycol contacts and absorbs water vapor and other gas stream 
constituents from the natural gas and becomes ``rich'' glycol. This 
glycol is then regenerated in the glycol dehydration unit reboiler. The 
``lean'' glycol is then recycled.
    Glycol dehydration unit baseline operations means operations 
representative of the glycol dehydration unit operations as of June 17, 
1999. For the purposes of this subpart, for determining

[[Page 182]]

the percentage of overall HAP emission reduction attributable to process 
modifications, glycol dehydration unit baseline operations shall be 
parameter values (including, but not limited to, glycol circulation rate 
or glycol-HAP absorbency) that represent actual long-term conditions 
(i.e., at least 1 year). Glycol dehydration units in operation for less 
than 1 year shall document that the parameter values represent expected 
long-term operating conditions had process modifications not been made.
    Glycol dehydration unit process vent means the glycol dehydration 
unit reboiler vent and the vent from the GCG separator (flash tank), if 
present.
    Glycol dehydration unit reboiler vent means the vent through which 
exhaust from the reboiler of a glycol dehydration unit passes from the 
reboiler to the atmosphere or to a control device.
    Hazardous air pollutants or HAP means the chemical compounds listed 
in section 112(b) of the Clean Air Act (Act). All chemical compounds 
listed in section 112(b) of the Act need to be considered when making a 
major source determination. Only the HAP compounds listed in Table 1 of 
this subpart need to be considered when determining compliance.
    Incinerator means an enclosed combustion device that is used for 
destroying organic compounds. Auxiliary fuel may be used to heat waste 
gas to combustion temperatures. Any energy recovery section is not 
physically formed into one manufactured or assembled unit with the 
combustion section; rather, the energy recovery section is a separate 
section following the combustion section and the two are joined by ducts 
or connections carrying flue gas. The above energy recovery section 
limitation does not apply to an energy recovery section used solely to 
preheat the incoming vent stream or combustion air.
    Initial startup means the first time a new or reconstructed source 
begins production. For the purposes of this subpart, initial startup 
does not include subsequent startups (as defined in this section) of 
equipment, for example, following malfunctions or shutdowns.
    Major source, as used in this subpart, shall have the same meaning 
as in Sec. 63.2, except that:
    (1) Emissions from any pipeline compressor station or pump station 
shall not be aggregated with emissions from other similar units, whether 
or not such units are in a contiguous area or under common control; and
    (2) Emissions from processes, operations, and equipment that are not 
part of the same facility, as defined in this section, shall not be 
aggregated.
    Natural gas means a naturally occurring mixture of hydrocarbon and 
nonhydrocarbon gases found in geologic formations beneath the earth's 
surface. The principal hydrocarbon constituent is methane.
    Natural gas transmission means the pipelines used for the long 
distance transport of natural gas (excluding processing). Specific 
equipment used in natural gas transmission includes the land, mains, 
valves, meters, boosters, regulators, storage vessels, dehydrators, 
compressors, and their driving units and appurtenances, and equipment 
used for transporting gas from a production plant, delivery point of 
purchased gas, gathering system, storage area, or other wholesale source 
of gas to one or more distribution area(s).
    No detectable emissions means no escape of HAP from a device or 
system to the atmosphere as determined by:
    (1) Instrument monitoring results in accordance with the 
requirements of Sec. 63.1282(b); and
    (2) The absence of visible openings or defects in the device or 
system, such as rips, tears, or gaps.
    Operating parameter value means a minimum or maximum value 
established for a control device or process parameter which, if achieved 
by itself or in combination with one or more other operating parameter 
values, indicates that an owner or operator has complied with an 
applicable operating parameter limitation, over the appropriate 
averaging period as specified in Sec. 63.1282 (e) and (f).
    Operating permit means a permit required by 40 CFR part 70 or part 
71.
    Organic monitoring device means an instrument used to indicate the 
concentration level of organic compounds

[[Page 183]]

exiting a control device based on a detection principle such as infra-
red, photoionization, or thermal conductivity.
    Primary fuel means the fuel that provides the principal heat input 
(i.e., more than 50 percent) to the device. To be considered primary, 
the fuel must be able to sustain operation without the addition of other 
fuels.
    Process heater means an enclosed device using a controlled flame, 
the primary purpose of which is to transfer heat to a process fluid or 
process material that is not a fluid, or to a heat transfer material for 
use in a process (rather than for steam generation) .
    Safety device means a device that meets both of the following 
conditions: the device is not used for planned or routine venting of 
liquids, gases, or fumes from the unit or equipment on which the device 
is installed; and the device remains in a closed, sealed position at all 
times except when an unplanned event requires that the device open for 
the purpose of preventing physical damage or permanent deformation of 
the unit or equipment on which the device is installed in accordance 
with good engineering and safety practices for handling flammable, 
combustible, explosive, or other hazardous materials. Examples of 
unplanned events which may require a safety device to open include 
failure of an essential equipment component or a sudden power outage.
    Shutdown means for purposes including, but not limited to, periodic 
maintenance, replacement of equipment, or repair, the cessation of 
operation of a glycol dehydration unit, or other affected source under 
this subpart, or equipment required or used solely to comply with this 
subpart.
    Startup means the setting into operation of a glycol dehydration 
unit, or other affected equipment under this subpart, or equipment 
required or used to comply with this subpart. Startup includes initial 
startup and operation solely for the purpose of testing equipment.
    Storage vessel means a tank or other vessel that is designed to 
contain an accumulation of crude oil, condensate, intermediate 
hydrocarbon liquids, produced water, or other liquid, and is constructed 
primarily of non-earthen materials (e.g., wood, concrete, steel, 
plastic) that provide structural support.
    Surface site means any combination of one or more graded pad sites, 
gravel pad sites, foundations, platforms, or the immediate physical 
location upon which equipment is physically affixed.
    Temperature monitoring device means an instrument used to monitor 
temperature and having a minimum accuracy of 2 percent of the 
temperature being monitored expressed in C, or 2.5 C, whichever is 
greater. The temperature monitoring device may measure temperature in 
degrees Fahrenheit or degrees Celsius, or both.
    Total organic compounds or TOC, as used in this subpart, means those 
compounds which can be measured according to the procedures of Method 
18, 40 CFR part 60, appendix A.
    Underground storage means the subsurface facilities utilized for 
storing natural gas that has been transferred from its original location 
for the primary purpose of load balancing, which is the process of 
equalizing the receipt and delivery of natural gas. Processes and 
operations that may be located at an underground storage facility 
include, but are not limited to, compression and dehydration.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34555, June 29, 2001]

Sec. 63.1272  Startups, shutdowns, and malfunctions.

    (a) The provisions set forth in this subpart shall apply at all 
times except during startups or shutdowns, during malfunctions, and 
during periods of non-operation of the affected sources (or specific 
portion thereof) resulting in cessation of the emissions to which this 
subpart applies. However, during the startup, shutdown, malfunction, or 
period of non-operation of one portion of an affected source, all 
emission points which can comply with the specific provisions to which 
they are subject must do so during the startup, shutdown, malfunction, 
or period of non-operation.
    (b) The owner or operator shall not shut down items of equipment 
that are required or utilized for compliance

[[Page 184]]

with the provisions of this subpart during times when emissions are 
being routed to such items of equipment, if the shutdown would 
contravene requirements of this subpart applicable to such items of 
equipment. This paragraph does not apply if the item of equipment is 
malfunctioning, or if the owner or operator must shut down the equipment 
to avoid damage due to a contemporaneous startup, shutdown, or 
malfunction of the affected source or a portion thereof.
    (c) During startups, shutdowns, and malfunctions when the 
requirements of this subpart do not apply pursuant to paragraphs (a) and 
(b) of this section, the owner or operator shall implement, to the 
extent reasonably available, measures to prevent or minimize excess 
emissions to the maximum extent practical. For purposes of this 
paragraph, the term ``excess emissions'' means emissions in excess of 
those that would have occurred if there were no startup, shutdown, or 
malfunction, and the owner or operator complied with the relevant 
provisions of this subpart. The measures to be taken shall be identified 
in the applicable startup, shutdown, and malfunction plan, and may 
include, but are not limited to, air pollution control technologies, 
recovery technologies, work practices, pollution prevention, monitoring, 
and/or changes in the manner of operation of the source. Back-up control 
devices are not required, but may be used if available.
    (d) Except as provided in paragraph (e) of this section, the owner 
or operator shall prepare a startup, shutdown, or malfunction plan as 
required in Sec. 63.6(e)(3), except that the plan is not required to be 
incorporated by reference into the source's title V permit as specified 
in Sec. 63.6(e)(3)(i). Instead, the owner or operator shall keep the plan 
on record as required by Sec. 63.6(e)(3)(v). The failure of the plan to 
adequately minimize emissions during the startup, shutdown, or 
malfunction does not shield an owner or operator from enforcement 
actions.
    (e) Owners or operators are exempt from the requirements to prepare 
a startup, shutdown, or malfunction plan for any facility where all of 
the affected sources meet the exemption criteria specified in Sec. 
63.1274(d).

[64 FR 32648, June 17, 1999, as amended at 66 FR 34555, June 29, 2001]

Sec. 63.1273  [Reserved]

Sec. 63.1274  General standards.

    (a) Table 2 of this subpart specifies the provisions of subpart A 
(General Provisions) that apply and those that do not apply to owners 
and operators of affected sources subject to this subpart.
    (b) All reports required under this subpart shall be sent to the 
Administrator at the appropriate address listed in Sec. 63.13. Reports may 
be submitted on electronic media.
    (c) Except as specified in paragraph (d) of this section, the owner 
or operator of an affected source (i.e., glycol dehydration unit) 
located at an existing or new major source of HAP emissions shall comply 
with the requirements in this subpart as follows:
    (1) The control requirements for glycol dehydration unit process 
vents specified in Sec. 63.1275;
    (2) The monitoring requirements specified in Sec. 63.1283, and
    (3) The recordkeeping and reporting requirements specified in 
Secs. 63.1284 and 63.1285.
    (d) Exemptions. The owner or operator is exempt from the 
requirements of paragraph (c) of this section if the criteria listed in 
paragraph (d)(1) or (2) of this section are met, except that the records 
of the determination of these criteria must be maintained as required in 
Sec. 63.1284(d).
    (1) The actual annual average flow of gas to the glycol dehydration 
unit is less than 283.0 thousand standard cubic meters per day, as 
determined by the procedures specified in Sec. 63.1282(a)(1); or
    (2) The actual average emissions of benzene from the glycol 
dehydration unit process vents to the atmosphere are less than 0.90 
megagram per year as determined by the procedures specified in Sec. 
63.1282(a)(2) of this subpart.
    (e) Each owner or operator of a major HAP source subject to this 
subpart is required to apply for a part 70 or part

[[Page 185]]

71 operating permit from the appropriate permitting authority. If the 
Administrator has approved a State operating permit program under part 
70, the permit shall be obtained from the State authority. If a State 
operating permit program has not been approved, the owner or operator 
shall apply to the EPA Regional Office pursuant to part 71.
    (f) [Reserved]
    (g) In all cases where the provisions of this subpart require an 
owner or operator to repair leaks by a specified time after the leak is 
detected, it is a violation of this standard to fail to take action to 
repair the leak(s) within the specified time. If action is taken to 
repair the leak(s) within the specified time, failure of that action to 
successfully repair the leak(s) is not a violation of this standard. 
However, if the repairs are unsuccessful, a leak is detected and the 
owner or operator shall take further action as required by the 
applicable provisions of this subpart.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34556, June 29, 2001]

Sec. 63.1275  Glycol dehydration unit process vent standards.

    (a) This section applies to each glycol dehydration unit subject to 
this subpart with an actual annual average natural gas flowrate equal to 
or greater than 283.0 thousand standard cubic meters per day and with 
actual average benzene glycol dehydration unit process vent emissions 
equal to or greater than 0.90 megagrams per year.
    (b) Except as provided in paragraph (c) of this section, an owner or 
operator of a glycol dehydration unit process vent shall comply with the 
requirements specified in paragraphs (b)(1) and (b)(2) of this section.
    (1) For each glycol dehydration unit process vent, the owner or 
operator shall control air emissions by either paragraph (b)(1)(i) or 
(b)(1)(ii) of this section.
    (i) The owner or operator shall connect the process vent to a 
control device or a combination of control devices through a closed-vent 
system. The closed-vent system shall be designed and operated in 
accordance with the requirements of Sec. 63.1281(c). The control device(s) 
shall be designed and operated in accordance with the requirements of Sec. 
63.1281(d).
    (ii) The owner or operator shall connect the process vent to a 
control device or a combination of control devices through a closed-vent 
system and the outlet benzene emissions from the control device(s) shall 
be less than 0.90 megagrams per year. The closed-vent system shall be 
designed and operated in accordance with the requirements of Sec. 
63.1281(c). The control device(s) shall be designed and operated in 
accordance with the requirements of Sec. 63.1281(d), except that the 
performance requirements specified in Sec. 63.1281(d)(1)(i) and (ii) do not 
apply.
    (2) One or more safety devices that vent directly to the atmosphere 
may be used on the air emission control equipment installed to comply 
with paragraph (b)(1) of this section.
    (c) As an alternative to the requirements of paragraph (b) of this 
section, the owner or operator may comply with one of the following:
    (1) The owner or operator shall control air emissions by connecting 
the process vent to a process natural gas line.
    (2) The owner or operator shall demonstrate, to the Administrator's 
satisfaction, that the total HAP emissions to the atmosphere from the 
glycol dehydration unit process vent are reduced by 95.0 percent through 
process modifications or a combination of process modifications and one 
or more control devices, in accordance with the requirements specified 
in Sec. 63.1281(e).
    (3) Control of HAP emissions from a GCG separator (flash tank) vent 
is not required if the owner or operator demonstrates, to the 
Administrator's satisfaction, that total emissions to the atmosphere 
from the glycol dehydration unit process vent are reduced by one of the 
levels specified in paragraph (c)(3)(i) or (ii) through the installation 
and operation of controls as specified in paragraph (b)(1) of this 
section.
    (i) HAP emissions are reduced by 95.0 percent or more.
    (ii) Benzene emissions are reduced to a level less than 0.90 
megagrams per year.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34556, June 29, 2001]

[[Page 186]]

Secs. 63.1276-63.1280  [Reserved]

Sec. 63.1281  Control equipment requirements.

    (a) This section applies to each closed-vent system and control 
device installed and operated by the owner or operator to control air 
emissions as required by the provisions of this subpart. Compliance with 
paragraphs (c) and (d) of this section will be determined by review of 
the records required by Sec. 63.1284, the reports required by Sec. 63.1285, by 
review of performance test results, and by inspections.
    (b) [Reserved]
    (c) Closed-vent system requirements. (1) The closed-vent system 
shall route all gases, vapors, and fumes emitted from the material in a 
HAP emissions unit to a control device that meets the requirements 
specified in paragraph (d) of this section.
    (2) The closed-vent system shall be designed and operated with no 
detectable emissions.
    (3) If the closed-vent system contains one or more bypass devices 
that could be used to divert all or a portion of the gases, vapors, or 
fumes from entering the control device, the owner or operator shall meet 
the requirements specified in paragraphs (c)(3)(i) and (c)(3)(ii) of 
this section.
    (i) For each bypass device, except as provided for in paragraph 
(c)(3)(ii) of this section, the owner or operator shall either:
    (A) Properly install, calibrate, maintain, and operate a flow 
indicator at the inlet to the bypass device that could divert the stream 
away from the control device to the atmosphere that takes a reading at 
least once every 15 minutes, and that sounds an alarm when the bypass 
device is open such that the stream is being, or could be, diverted away 
from the control device to the atmosphere; or
    (B) Secure the bypass device valve installed at the inlet to the 
bypass device in the non-diverting position using a car-seal or a lock-
and-key type configuration. The owner or operator shall visually inspect 
the seal or closure mechanism at least once every month to verify that 
the valve is maintained in the non-diverting position and the vent 
stream is not diverted through the bypass device.
    (ii) Low leg drains, high point bleeds, analyzer vents, open-ended 
valves or lines, and safety devices are not subject to the requirements 
of paragraph (c)(3)(i) of this section.
    (d) Control device requirements. (1) The control device used to 
reduce HAP emissions in accordance with the standards of this subpart 
shall be one of the control devices specified in paragraphs (d)(1)(i) 
through (iii) of this section.
    (i) An enclosed combustion device (e.g., thermal vapor incinerator, 
catalytic vapor incinerator, boiler, or process heater) that is designed 
and operated in accordance with one of the following performance 
requirements:
    (A) Reduces the mass content of either TOC or total HAP in the gases 
vented to the device by 95.0 percent by weight or greater, as determined 
in accordance with the requirements of Sec. 63.1282(d);
    (B) Reduces the concentration of either TOC or total HAP in the 
exhaust gases at the outlet to the device to a level equal to or less 
than 20 parts per million by volume on a dry basis corrected to 3 
percent oxygen as determined in accordance with the requirements of Sec. 
63.1282(d); or
    (C) Operates at a minimum residence time of 0.5 second at a minimum 
temperature of 760 C.
    (D) If a boiler or process heater is used as the control device, 
then the vent stream shall be introduced into the flame zone of the 
boiler or process heater.
    (ii) A vapor recovery device (e.g., carbon adsorption system or 
condenser) or other control device that is designed and operated to 
reduce the mass content of either TOC or total HAP in the gases vented 
to the device by 95.0 percent by weight or greater as determined in 
accordance with the requirements of Sec. 63.1282(d).
    (iii) A flare that is designed and operated in accordance with the 
requirements of Sec. 63.11(b).
    (2) [Reserved]
    (3) The owner or operator shall demonstrate that a control device 
achieves

[[Page 187]]

the performance requirements of paragraph (d)(1) of this section by 
following the procedures specified in Sec. 63.1282(d).
    (4) The owner or operator shall operate each control device in 
accordance with the requirements specified in paragraphs (d)(4)(i) and 
(ii) of this section.
    (i) Each control device used to comply with this subpart shall be 
operating at all times when gases, vapors, and fumes are vented from the 
emissions unit or units through the closed-vent system to the control 
device, as required under Sec. 63.1275, except when maintenance or repair 
of a unit cannot be completed without a shutdown of the control device. 
An owner or operator may vent more than one unit to a control device 
used to comply with this subpart.
    (ii) For each control device monitored in accordance with the 
requirements of Sec. 63.1283(d), the owner or operator shall demonstrate 
compliance according to the requirements of Sec. 63.1282(e), or (f) as 
applicable.
    (5) For each carbon adsorption system used as a control device to 
meet the requirements of paragraph (d)(1) of this section, the owner or 
operator shall manage the carbon as follows:
    (i) Following the initial startup of the control device, all carbon 
in the control device shall be replaced with fresh carbon on a regular, 
predetermined time interval that is no longer than the carbon service 
life established for the carbon adsorption system.
    (ii) The spent carbon removed from the carbon adsorption system 
shall be either regenerated, reactivated, or burned in one of the units 
specified in paragraphs (d)(5)(ii)(A) through (d)(5)(ii)(G) of this 
section.
    (A) Regenerated or reactivated in a thermal treatment unit for which 
the owner or operator has been issued a final permit under 40 CFR part 
270 that implements the requirements of 40 CFR part 264, subpart X.
    (B) Regenerated or reactivated in a thermal treatment unit equipped 
with and operating organic air emission controls in accordance with this 
section.
    (C) Regenerated or reactivated in a thermal treatment unit equipped 
with and operating organic air emission controls in accordance with a 
national emissions standard for HAP under another subpart in 40 CFR part 
61 or this part.
    (D) Burned in a hazardous waste incinerator for which the owner or 
operator has been issued a final permit under 40 CFR part 270 that 
implements the requirements of 40 CFR part 264, subpart O.
    (E) Burned in a hazardous waste incinerator which the owner or 
operator has designed and operates in accordance with the requirements 
of 40 CFR part 265, subpart O.
    (F) Burned in a boiler or industrial furnace for which the owner or 
operator has been issued a final permit under 40 CFR part 270 that 
implements the requirements of 40 CFR part 266, subpart H.
    (G) Burned in a boiler or industrial furnace which the owner or 
operator has designed and operates in accordance with the interim status 
requirements of 40 CFR part 266, subpart H.
    (e) Process modification requirements. Each owner or operator that 
chooses to comply with Sec. 63.1275(c)(2) shall meet the requirements 
specified in paragraphs (e)(1) through (e)(3) of this section.
    (1) The owner or operator shall determine glycol dehydration unit 
baseline operations (as defined in Sec. 63.1271). Records of glycol 
dehydration unit baseline operations shall be retained as required under 
Sec. 63.1284(b)(9).
    (2) The owner or operator shall document, to the Administrator's 
satisfaction, the conditions for which glycol dehydration unit baseline 
operations shall be modified to achieve the 95.0 percent overall HAP 
emission reduction, either through process modifications or through a 
combination of process modifications and one or more control devices. If 
a combination of process modifications and one or more control devices 
are used, the owner or operator shall also establish the percent HAP 
reduction to be achieved by the control device to achieve an overall HAP 
emission reduction of 95.0 percent for the glycol dehydration unit 
process vent. Only modifications in glycol dehydration unit operations 
directly related to process changes, including but

[[Page 188]]

not limited to changes in glycol circulation rate or glycol-HAP 
absorbency, shall be allowed. Changes in the inlet gas characteristics 
or natural gas throughput rate shall not be considered in determining 
the overall HAP emission reduction due to process modifications.
    (3) The owner or operator that achieves a 95.0 percent HAP emission 
reduction using process modifications alone shall comply with paragraph 
(e)(3)(i) of this section. The owner or operator that achieves a 95.0 
percent HAP emission reduction using a combination of process 
modifications and one or more control devices shall comply with 
paragraphs (e)(3)(i) and (e)(3)(ii) of this section.
    (i) The owner or operator shall maintain records, as required in Sec. 
63.1284(b)(10), that the facility continues to operate in accordance 
with the conditions specified under paragraph (e)(2) of this section.
    (ii) The owner or operator shall comply with the control device 
requirements specified in paragraph (d) of this section, except that the 
emission reduction achieved shall be the emission reduction specified in 
paragraph (e)(2) of this section.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34556, June 29, 2001]

    Effective Date Note: At 68 FR 37357, June 23, 2003, Sec. 63.1281 was 
amended by revising paragraphs (c)(3)(i)(A) and (B) effective August 22, 
2003. For the convenience of the user, the revised text is set forth as 
follows:

Sec. 63.1281  Control equipment requirements.

                                * * * * *

    (c) * * *
    (3) * * *
    (i) * * *
    (A) At the inlet to the bypass device that could divert the stream 
away from the control device to the atmosphere, properly install, 
calibrate, maintain, and operate a flow indicator that is capable of 
taking periodic readings and sounding an alarm when the bypass device is 
open such that the stream is being, or could be, diverted away from the 
control device to the atmosphere; or
    (B) Secure the bypass device valve installed at the inlet to the 
bypass device in the non-diverting position using a car-seal or a lock-
and-key type configuration.

                                * * * * *

Sec. 63.1282  Test methods, compliance procedures, and compliance 
          demonstrations.

    (a) Determination of glycol dehydration unit flowrate or benzene 
emissions. The procedures of this paragraph shall be used by an owner or 
operator to determine glycol dehydration unit natural gas flowrate or 
benzene emissions to meet the criteria for the exemption from control 
requirements under Sec. 63.1274(d).
    (1) The determination of actual flowrate of natural gas to a glycol 
dehydration unit shall be made using the procedures of either paragraph 
(a)(1)(i) or (a)(1)(ii) of this section.
    (i) The owner or operator shall install and operate a monitoring 
instrument that directly measures natural gas flowrate to the glycol 
dehydration unit with an accuracy of plus or minus 2 percent or better. 
The owner or operator shall convert the annual natural gas flowrate to a 
daily average by dividing the annual flowrate by the number of days per 
year the glycol dehydration unit processed natural gas.
    (ii) The owner or operator shall document, to the Administrator's 
satisfaction, that the actual annual average natural gas flowrate to the 
glycol dehydration unit is less than 283.0 thousand standard cubic 
meters per day.
    (2) The determination of actual average benzene emissions from a 
glycol dehydration unit shall be made using the procedures of either 
paragraph (a)(2)(i) or (a)(2)(ii) of this section. Emissions shall be 
determined either uncontrolled or with federally enforceable controls in 
place.
    (i) The owner or operator shall determine actual average benzene 
emissions using the model GRI-GLYCalcTM, Version 3.0 or 
higher, and the procedures presented in the associated GRI-
GLYCalcTM Technical Reference Manual. Inputs to the model 
shall be representative of actual operating conditions of the glycol 
dehydration unit and may be determined using the procedures documented 
in the Gas Research Institute (GRI) report entitled

[[Page 189]]

``Atmospheric Rich/Lean Method for Determining Glycol Dehydrator 
Emissions'' (GRI-95/0368.1); or
    (ii) The owner or operator shall determine an average mass rate of 
benzene emissions in kilograms per hour through direct measurement by 
performing three runs of Method 18 in 40 CFR part 60, appendix A (or an 
equivalent method), and averaging the results of the three runs. Annual 
emissions in kilograms per year shall be determined by multiplying the 
mass rate by the number of hours the unit is operated per year. This 
result shall be converted to megagrams per year.
    (b) No detectable emissions test procedure. (1) The procedure shall 
be conducted in accordance with Method 21, 40 CFR part 60, appendix A.
    (2) The detection instrument shall meet the performance criteria of 
Method 21, 40 CFR part 60, appendix A, except the instrument response 
factor criteria in section 3.1.2(a) of Method 21 shall be for the 
average composition of the fluid, and not for each individual organic 
compound in the stream.
    (3) The detection instrument shall be calibrated before use on each 
day of its use by the procedures specified in Method 21, 40 CFR part 60, 
appendix A.
    (4) Calibration gases shall be as follows:
    (i) Zero air (less than 10 parts per million by volume hydrocarbon 
in air); and
    (ii) A mixture of methane in air at a methane concentration of less 
than 10,000 parts per million by volume.
    (5) An owner or operator may choose to adjust or not adjust the 
detection instrument readings to account for the background organic 
concentration level. If an owner or operator chooses to adjust the 
instrument readings for the background level, the background level value 
must be determined according to the procedures in Method 21 of 40 CFR 
part 60, appendix A.
    (6)(i) Except as provided in paragraph (b)(6)(ii) of this section, 
the detection instrument shall meet the performance criteria of Method 
21 of 40 CFR part 60, appendix A, except the instrument response factor 
criteria in section 3.1.2(a) of Method 21 shall be for the average 
composition of the process fluid not each individual volatile organic 
compound in the stream. For process streams that contain nitrogen, air, 
or other inerts which are not organic HAP or VOC, the average stream 
response factor shall be calculated on an inert-free basis.
    (ii) If no instrument is available at the facility that will meet 
the performance criteria specified in paragraph (b)(6)(i) of this 
section, the instrument readings may be adjusted by multiplying by the 
average response factor of the process fluid, calculated on an inert-
free basis as described in paragraph (b)(6)(i) of this section.
    (7) An owner or operator must determine if a potential leak 
interface operates with no detectable emissions using the applicable 
procedure specified in paragraph (b)(7)(i) or (b)(7)(ii) of this 
section.
    (i) If an owner or operator chooses not to adjust the detection 
instrument readings for the background organic concentration level, then 
the maximum organic concentration value measured by the detection 
instrument is compared directly to the applicable value for the 
potential leak interface as specified in paragraph (b)(8) of this 
section.
    (ii) If an owner or operator chooses to adjust the detection 
instrument readings for the background organic concentration level, the 
value of the arithmetic difference between the maximum organic 
concentration value measured by the instrument and the background 
organic concentration value as determined in paragraph (b)(5) of this 
section is compared with the applicable value for the potential leak 
interface as specified in paragraph (b)(8) of this section.
    (8) A potential leak interface is determined to operate with no 
detectable organic emissions if the organic concentration value 
determined in paragraph (b)(7) is less than 500 parts per million by 
volume.
    (c) [Reserved]
    (d) Control device performance test procedures. This paragraph 
applies to the performance testing of control devices. The owners or 
operators shall demonstrate that a control device achieves the 
performance requirements of Sec. 63.1281(d)(1) or (e)(3)(ii) using either a

[[Page 190]]

performance test as specified in paragraph (d)(3) of this section or a 
design analysis as specified in paragraph (d)(4) of this section. The 
owner or operator may elect to use the alternative procedures in 
paragraph (d)(5) of this section for performance testing of a condenser 
used to control emissions from a glycol dehydration unit process vent.
    (1) The following control devices are exempt from the requirements 
to conduct performance tests and design analyses under this section:
    (i) Except as specified in paragraph (d)(2) of this section, a flare 
that is designed and operated in accordance with Sec. 63.11(b);
    (ii) A boiler or process heater with a design heat input capacity of 
44 megawatts or greater;
    (iii) A boiler or process heater into which the vent stream is 
introduced with the primary fuel or is used as the primary fuel;
    (iv) A boiler or process heater burning hazardous waste for which 
the owner or operator has either been issued a final permit under 40 CFR 
part 270 and complies with the requirements of 40 CFR part 266, subpart 
H, or has certified compliance with the interim status requirements of 
40 CFR part 266, subpart H;
    (v) A hazardous waste incinerator for which the owner or operator 
has been issued a final permit under 40 CFR part 270 and complies with 
the requirements of 40 CFR part 264, subpart O, or has certified 
compliance with the interim status requirements of 40 CFR part 265, 
subpart O.
    (vi) A control device for which a performance test was conducted for 
determining compliance with a regulation promulgated by the EPA, and the 
test was conducted using the same methods specified in this section, and 
either no process changes have been made since the test, or the owner or 
operator can demonstrate that the results of the performance test, with 
or without adjustments, reliably demonstrate compliance despite process 
changes.
    (2) An owner or operator shall design and operate each flare in 
accordance with the requirements specified in Sec. 63.11(b) and in 
paragraphs (d)(2)(i) and (d)(2)(ii) of this section.
    (i) The compliance determination shall be conducted using Method 22 
of 40 CFR part 60, appendix A, to determine visible emissions.
    (ii) An owner or operator is not required to conduct a performance 
test to determine percent emission reduction or outlet organic HAP or 
TOC concentration when a flare is used.
    (3) For a performance test conducted to demonstrate that a control 
device meets the requirements of Sec. 63.1281(d)(1) or (e)(3)(ii), the 
owner or operator shall use the test methods and procedures specified in 
paragraphs (d)(3)(i) through (iv) of this section. The performance test 
results shall be submitted in the Notification of Compliance Status 
Report as required in Sec. 63.1285(d)(1)(ii).
    (i) Method 1 or 1A, 40 CFR part 60, appendix A, as appropriate, 
shall be used for selection of the sampling sites specified in 
paragraphs (d)(3)(i)(A) and (B) of this section. Any references to 
particulate mentioned in Methods 1 and 1A do not apply to this section.
    (A) To determine compliance with the control device percent 
reduction requirements specified in Sec. 63.1281(d)(1)(i)(A),(d)(1)(ii), or 
(e)(3)(ii), sampling sites shall be located at the inlet of the first 
control device and at the outlet of the final control device.
    (B) To determine compliance with the enclosed combustion device 
total HAP concentration limit specified in Sec. 63.1281(d)(1)(i)(B), the 
sampling site shall be located at the outlet of the device.
    (ii) The gas volumetric flowrate shall be determined using Method 2, 
2A, 2C, or 2D, 40 CFR part 60, appendix A, as appropriate.
    (iii) To determine compliance with the control device percent 
reduction performance requirement in Sec. 63.1281(d)(1)(i)(A), 
63.1281(d)(1)(ii), or 63.1281(e)(3)(ii), the owner or operator shall use 
either Method 18, 40 CFR part 60, appendix A, or Method 25A, 40 CFR part 
60, appendix A; alternatively, any other method or data that have been 
validated according to the applicable procedures in Method 301 of 
appendix A of this part may be used. The following procedures shall be 
used to calculate the percentage of reduction:
    (A) The minimum sampling time for each run shall be 1 hour in which 
either

[[Page 191]]

an integrated sample or a minimum of four grab samples shall be taken. 
If grab sampling is used, then the samples shall be taken at 
approximately equal intervals in time, such as 15-minute intervals 
during the run.
    (B) The mass rate of either TOC (minus methane and ethane) or total 
HAP (Ei, Eo) shall be computed using the equations 
and procedures specified in paragraphs (d)(3)(iii)(B)(1) through (3) of 
this section. As an alternative, the mass rate of either TOC (minus 
methane and ethane) or total HAP at the inlet of the control device 
(Ei) may be calculated using the procedures specified in 
paragraph (d)(3)(iii)(B)(4) of this section.
    (1) The following equations shall be used:
    [GRAPHIC] [TIFF OMITTED] TR29JN01.027
    
Where:
Cij, Coj = Concentration of sample component j of 
          the gas stream at the inlet and outlet of the control device, 
          respectively, dry basis, parts per million by volume.
Ei, Eo = Mass rate of TOC (minus methane and 
          ethane) or total HAP at the inlet and outlet of the control 
          device, respectively, dry basis, kilogram per hour.
Mij, Moj = Molecular weight of sample component j 
          of the gas stream at the inlet and outlet of the control 
          device, respectively, gram/gram-mole.
Qi, Qo = Flowrate of gas stream at the inlet and 
          outlet of the control device, respectively, dry standard cubic 
          meter per minute.
K2 = Constant, 2.494x10-6 (parts per 
          million)-1 (gram-mole per standard cubic meter) 
          (kilogram/gram) (minute/hour), where standard temperature is 
          20 C.
n = Number of components in sample.

    (2) When the TOC mass rate is calculated, all organic compounds 
(minus methane and ethane) measured by Method 18, of 40 CFR part 60, 
appendix A; or Method 25A, 40 CFR part 60, appendix A, shall be summed 
using the equations in paragraph (d)(3)(iii)(B)(1) of this section.
    (3) When the total HAP mass rate is calculated, only HAP chemicals 
listed in Table 1 of this subpart shall be summed using the equations in 
paragraph (d)(3)(iii)(B)(1) of this section.
    (4) As an alternative to the procedures for calculating 
Ei specified in paragraph (d)(3)(iii)(B)(1) of this section, 
the owner or operator may use the model GRI-GLYCalcTM, 
Version 3.0 or higher, and the procedures presented in the associated 
GRI-GLYCalcTM Technical Reference Manual. Inputs to the model 
shall be representative of actual operating conditions of the glycol 
dehydration unit and shall be determined using the procedures documented 
in the Gas Research Institute (GRI) report entitled ``Atmospheric Rich/
Lean Method for Determining Glycol Dehydrator Emissions'' (GRI-95/
0368.1). When the TOC mass rate is calculated for glycol dehydration 
units using the model GRI-GLYCalcTM, all organic compounds 
(minus methane and ethane) measured by Method 18, 40 CFR part 60, 
appendix A, or Method 25A, 40 CFR part 60, appendix A, shall be summed. 
When the total HAP mass rate is calculated for glycol dehydration units 
using the model GRI-GLYCalcTM, only HAP chemicals listed in 
Table 1 of this subpart shall be summed.
    (C) The percentage of reduction in TOC (minus methane and ethane) or 
total HAP shall be calculated as follows:
[GRAPHIC] [TIFF OMITTED] TR17JN99.010

Where:

Rcd = Control efficiency of control device, percent.
Ei = Mass rate of TOC (minus methane and ethane) or total HAP 
          at the inlet to the control device as calculated under 
          paragraph (d)(3)(iii)(B) of this section, kilograms TOC per 
          hour or kilograms HAP per hour.
Eo = Mass rate of TOC (minus methane and ethane) or total HAP 
          at the outlet of the control device, as calculated under 
          paragraph (d)(3)(iii)(B) of this section, kilograms TOC per 
          hour or kilograms HAP per hour.

    (D) If the vent stream entering a boiler or process heater with a 
design

[[Page 192]]

capacity less than 44 megawatts is introduced with the combustion air or 
as a secondary fuel, the weight-percentage of reduction of total HAP or 
TOC (minus methane and ethane) across the device shall be determined by 
comparing the TOC (minus methane and ethane) or total HAP in all 
combusted vent streams and primary and secondary fuels with the TOC 
(minus methane and ethane) or total HAP exiting the device, 
respectively.
    (iv) To determine compliance with the enclosed combustion device 
total HAP concentration limit specified in Sec. 63.1281(d)(1)(i)(B), the 
owner or operator shall use either Method 18, 40 CFR part 60, appendix 
A; or Method 25A, 40 CFR part 60, appendix A, to measure either TOC 
(minus methane and ethane) or total HAP. Alternatively, any other method 
or data that have been validated according to Method 301 of appendix A 
of this part, may be used. The following procedures shall be used to 
calculate parts per million by volume concentration, corrected to 3 
percent oxygen:
    (A) The minimum sampling time for each run shall be 1 hour in which 
either an integrated sample or a minimum of four grab samples shall be 
taken. If grab sampling is used, then the samples shall be taken at 
approximately equal intervals in time, such as 15-minute intervals 
during the run.
    (B) The TOC concentration or total HAP concentration shall be 
calculated according to paragraph (d)(3)(iv)(B)(1) or (d)(3)(iv)(B)(2) 
of this section.
    (1) The TOC concentration (CTOC) is the sum of the 
concentrations of the individual components and shall be computed for 
each run using the following equation:
[GRAPHIC] [TIFF OMITTED] TR17JN99.011

Where:

CTOC = Concentration of total organic compounds minus methane 
          and ethane, dry basis, parts per million by volume.
Cji = Concentration of sample components j of sample i, dry 
          basis, parts per million by volume.
n = Number of components in the sample.
x = Number of samples in the sample run.

    (2) The total HAP concentration (CHAP) shall be computed 
according to the equation in paragraph (d)(3)(iv)(B)(1) of this section, 
except that only HAP chemicals listed in Table 1 of this subpart shall 
be summed.
    (C) The TOC concentration or total HAP concentration shall be 
corrected to 3 percent oxygen as follows:
    (1) The emission rate correction factor for excess air, integrated 
sampling and analysis procedures of Method 3B, 40 CFR part 60, appendix 
A, shall be used to determine the oxygen concentration 
(%O2d). The samples shall be taken during the same time that 
the samples are taken for determining TOC concentration or total HAP 
concentration.
    (2) The concentration corrected to 3 percent oxygen (Cc) 
shall be computed using the following equation:
[GRAPHIC] [TIFF OMITTED] TR17JN99.012

Where:

Cc = TOC concentration of total HAP concentration corrected 
          to 3 percent oxygen, dry basis, parts per million by volume.
Cm = TOC concentration or total HAP concentration, dry basis, 
          parts per million by volume.
%O2d = Concentration of oxygen, dry basis, percent by volume.

    (4) For a design analysis conducted to meet the requirements of Sec. 
63.1281(d)(1) or (e)(3)(ii), the owner or operator shall meet the 
requirements specified in paragraphs (d)(4)(i) and (d)(4)(ii) of this 
section. Documentation of the design analysis shall be submitted as a 
part of the Notification of Compliance Status Report as required in Sec. 
63.1285(d)(1)(i).
    (i) The design analysis shall include analysis of the vent stream 
characteristics and control device operating parameters for the 
applicable control device as specified in paragraphs (d)(4)(i) (A) 
through (F) of this section.
    (A) For a thermal vapor incinerator, the design analysis shall 
include the vent stream composition, constituent concentrations, and 
flowrate and shall establish the design minimum and average temperatures 
in the combustion

[[Page 193]]

zone and the combustion zone residence time.
    (B) For a catalytic vapor incinerator, the design analysis shall 
include the vent stream composition, constituent concentrations, and 
flowrate and shall establish the design minimum and average temperatures 
across the catalyst bed inlet and outlet, and the design service life of 
the catalyst.
    (C) For a boiler or process heater, the design analysis shall 
include the vent stream composition, constituent concentrations, and 
flowrate; shall establish the design minimum and average flame zone 
temperatures and combustion zone residence time; and shall describe the 
method and location where the vent stream is introduced into the flame 
zone.
    (D) For a condenser, the design analysis shall include the vent 
stream composition, constituent concentrations, flowrate, relative 
humidity, and temperature, and shall establish the design outlet organic 
compound concentration level, design average temperature of the 
condenser exhaust vent stream, and the design average temperatures of 
the coolant fluid at the condenser inlet and outlet. As an alternative 
to the design analysis, an owner or operator may elect to use the 
procedures specified in paragraph (d)(5) of this section.
    (E) For a regenerable carbon adsorption, the design analysis shall 
include the vent stream composition, constituent concentrations, 
flowrate, relative humidity, and temperature, and shall establish the 
design exhaust vent stream organic compound concentration level, 
adsorption cycle time, number and capacity of carbon beds, type and 
working capacity of activated carbon used for the carbon beds, design 
total regeneration stream flow over the period of each complete carbon 
bed regeneration cycle, design carbon bed temperature after 
regeneration, design carbon bed regeneration time, and design service 
life of the carbon.
    (F) For a nonregenerable carbon adsorption system, such as a carbon 
canister, the design analysis shall include the vent stream composition, 
constituent concentrations, flowrate, relative humidity, and 
temperature, and shall establish the design exhaust vent stream organic 
compound concentration level, capacity of the carbon bed, type and 
working capacity of activated carbon used for the carbon bed, and design 
carbon replacement interval based on the total carbon working capacity 
of the control device and source operating schedule. In addition, these 
systems will incorporate dual carbon canisters in case of emission 
breakthrough occurring in one canister.
    (ii) If the owner or operator and the Administrator do not agree on 
a demonstration of control device performance using a design analysis, 
then the disagreement shall be resolved using the results of a 
performance test performed by the owner or operator in accordance with 
the requirements of paragraph (d)(3) of this section. The Administrator 
may choose to have an authorized representative observe the performance 
test.
    (5) As an alternative to the procedures in paragraphs (d)(3) and 
(d)(4)(i)(D) of this section, an owner or operator may elect to use the 
procedures documented in the GRI report entitled, ``Atmospheric Rich/
Lean Method for Determining Glycol Dehydrator Emissions,'' (GRI-95/
0368.1) as inputs for the model GRI-GLYCalcTM, Version 3.0 or 
higher, to determine condenser performance.
    (e) Compliance demonstration for control devices performance 
requirements. This paragraph applies to the demonstration of compliance 
with the control device performance requirements specified in Sec. 
63.1281(d)(1) and (e)(3)(ii). Compliance shall be demonstrated using the 
requirements in paragraphs (e)(1) through (3) of this section. As an 
alternative, an owner or operator that installs a condenser as the 
control device to achieve the requirements specified in Sec. 
63.1281(d)(1)(ii) or (e)(3)(ii) may demonstrate compliance according to 
paragraph (f) of this section. An owner or operator may switch between 
compliance with paragraph (e) of this section and compliance with 
paragraph (f) of this section only after at least 1 year of operation in 
compliance with the selected approach. Notification of such a change in 
the compliance method shall be reported in the next Periodic Report, as 
required in Sec. 63.1285(e), following the change.

[[Page 194]]

    (1) The owner or operator shall establish a site specific maximum or 
minimum monitoring parameter value (as appropriate) according to the 
requirements of Sec. 63.1283(d)(5)(i).
    (2) The owner or operator shall calculate the daily average of the 
applicable monitored parameter in accordance with Sec. 63.1283(d)(4).
    (3) Compliance is achieved when the daily average of the monitoring 
parameter value calculated under paragraph (e)(2) of this section is 
either equal to or greater than the minimum or equal to or less than the 
maximum monitoring value established under paragraph (e)(1) of this 
section.
    (f) Compliance demonstration with percent reduction performance 
requirements--condensers. This paragraph applies to the demonstration of 
compliance with the performance requirements specified in Sec. 
63.1281(d)(1)(ii) for condensers. Compliance shall be demonstrated using 
the procedures in paragraphs (f)(1) through (f)(3) of this section.
    (1) The owner or operator shall establish a site-specific condenser 
performance curve according to the procedures specified in Sec. 
63.1283(d)(5)(ii).
    (2) Compliance with the percent reduction requirement in Sec. 
63.1281(d)(1)(ii) or (e)(3) shall be demonstrated by the procedures in 
paragraphs (f)(2)(i) through (iii) of this section.
    (i) The owner or operator must calculate the daily average condenser 
outlet temperature in accordance with Sec. 63.1283(d)(4).
    (ii) The owner or operator shall determine the condenser efficiency 
for the current operating day using the daily average condenser outlet 
temperature calculated in paragraph (f)(2)(i) of this section and the 
condenser performance curve established in paragraph (f)(1) of this 
section.
    (iii) Except as provided in paragraphs (f)(2)(iii)(A), (B), and (D) 
of this section, at the end of each operating day the owner or operator 
shall calculate the 30-day average HAP emission reduction from the 
condenser efficiencies as determined in paragraph (f)(2)(ii) of this 
section for the preceding 30 operating days. If the owner or operator 
uses a combination of process modifications and a condenser in 
accordance with the requirements of Sec. 63.1281(e), the 30-day average HAP 
emission reduction shall be calculated using the emission reduction 
achieved through process modifications and the condenser efficiency as 
determined in paragraph (f)(2)(ii) of this section, both for the 
preceding 30 operating days.
    (A) After the compliance date specified in Sec. 63.1270(d), an owner or 
operator of a facility that stores natural gas that has less than 30 
days of data for determining the average HAP emission reduction shall 
calculate the cumulative average at the end of the withdrawal season, 
each season, until 30 days of condenser operating data are accumulated. 
For a facility that does not store natural gas, the owner or operator 
that has less than 30 days of data for determining average HAP emission 
reduction shall calculate the cumulative average at the end of the 
calendar year, each year, until 30 days of condenser operating data are 
accumulated.
    (B) After the compliance date specified in Sec. 63.1270(d), for an 
owner or operator that has less than 30 days of data for determining the 
average HAP emission reduction, compliance is achieved if the average 
HAP emission reduction calculated in paragraph (f)(2)(iii)(A) of this 
section is equal to or greater than 95.0 percent.
    (C) For the purposes of this subpart, a withdrawal season begins the 
first time gas is withdrawn from the storage field after July 1 of the 
calendar year and ends on June 30 of the next calendar year.
    (D) Glycol dehydration units that are operated continuously have the 
option of complying with the requirements specified in 40 CFR 63.772(g).
    (3) Compliance is achieved with the emission limitation specified in 
Sec. 63.1281(d)(1)(ii) or (e)(3) if the average HAP emission reduction 
calculated in paragraph (f)(2)(iii) of this section is equal to or 
greater than 95.0 percent.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34556, June 29, 2001]

Sec. 63.1283  Inspection and monitoring requirements.

    (a) This section applies to an owner or operator using air emission 
controls

[[Page 195]]

in accordance with the requirements of Sec. 63.1275.
    (b) [Reserved]
    (c) Closed-vent system inspection and monitoring requirements. (1) 
For each closed-vent system required to comply with this section, the 
owner or operator shall comply with the requirements of paragraphs 
(c)(2) through (7) of this section.
    (2) Except as provided in paragraphs (c) (5) and (6) of this 
section, each closed-vent system shall be inspected according to the 
procedures and schedule specified in paragraphs (c)(2) (i) and (ii) of 
this section.
    (i) For each closed-vent system joints, seams, or other connections 
that are permanently or semi-permanently sealed (e.g., a welded joint 
between two sections of hard piping or a bolted or gasketed ducting 
flange), the owner or operator shall:
    (A) Conduct an initial inspection according to the procedures 
specified in Sec. 63.1282(b) to demonstrate that the closed-vent system 
operates with no detectable emissions. Inspection results shall be 
submitted with the Notification of Compliance Status Report as specified 
in Sec. 63.1285(d)(1) or (2).
    (B) Conduct annual visual inspections for defects that could result 
in air emissions. Defects include, but are not limited to, visible 
cracks, holes, or gaps in piping; loose connections; or broken or 
missing caps or other closure devices. The owner or operator shall 
monitor a component or connection using the procedures specified in Sec. 
63.1282(b) to demonstrate that it operates with no detectable emissions 
following any time the component or connection is repaired or replaced 
or the connection is unsealed. Inspection results shall be submitted in 
the Periodic Report as specified in Sec. 63.1285(e)(2)(iii).
    (ii) For closed-vent system components other than those specified in 
paragraph (c)(2)(i) of this section, the owner or operator shall:
    (A) Conduct an initial inspection according to the procedures 
specified in Sec. 63.1282(b) to demonstrate that the closed-vent system 
operates with no detectable emissions. Inspection results shall be 
submitted with the Notification of Compliance Status Report as specified 
in Sec. 63.1285(d)(1) or (2).
    (B) Conduct annual inspections according to the procedures specified 
in Sec. 63.1282(b) to demonstrate that the components or connections 
operate with no detectable emissions. Inspection results shall be 
submitted in the Periodic Report as specified in Sec. 63.1285(e)(2)(iii).
    (C) Conduct annual visual inspections for defects that could result 
in air emissions. Defects include, but are not limited to, visible 
cracks, holes, or gaps in ductwork; loose connections; or broken or 
missing caps or other closure devices. Inspection results shall be 
submitted in the Periodic Report as specified in Sec. 63.1285(e)(2)(iii).
    (3) In the event that a leak or defect is detected, the owner or 
operator shall repair the leak or defect as soon as practicable, except 
as provided in paragraph (c)(4) of this section.
    (i) A first attempt at repair shall be made no later than 5 calendar 
days after the leak is detected.
    (ii) Repair shall be completed no later than 15 calendar days after 
the leak is detected.
    (4) Delay of repair of a closed-vent system for which leaks or 
defects have been detected is allowed if the repair is technically 
infeasible without a shutdown, as defined in Sec. 63.1271, or if the owner 
or operator determines that emissions resulting from immediate repair 
would be greater than the fugitive emissions likely to result from delay 
of repair. Repair of such equipment shall be completed by the end of the 
next shutdown.
    (5) Any parts of the closed-vent system or cover that are 
designated, as described in paragraphs (c)(5) (i) and (ii) of this 
section, as unsafe to inspect are exempt from the inspection 
requirements of paragraphs (c)(2) (i) and (ii) of this section if:
    (i) The owner or operator determines that the equipment is unsafe to 
inspect because inspecting personnel would be exposed to an imminent or 
potential danger as a consequence of complying with paragraph (c)(2) (i) 
or (ii) of this section; and
    (ii) The owner or operator has a written plan that requires 
inspection of the equipment as frequently as practicable during safe-to-
inspect times.

[[Page 196]]

    (6) Any parts of the closed-vent system or cover that are 
designated, as described in paragraphs (c)(6) (i) and (ii) of this 
section, as difficult to inspect are exempt from the inspection 
requirements of paragraphs (c)(2) (i) and (ii) of this section if:
    (i) The owner or operator determines that the equipment cannot be 
inspected without elevating the inspecting personnel more than 2 meters 
above a support surface; and
    (ii) The owner or operator has a written plan that requires 
inspection of the equipment at least once every 5 years.
    (7) Records shall be maintained as specified in Sec. 63.1284(b)(5) 
through (8).
    (d) Control device monitoring requirements. (1) For each control 
device except as provided for in paragraph (d)(2) of this section, the 
owner or operator shall install and operate a continuous parameter 
monitoring system in accordance with the requirements of paragraphs 
(d)(3) through (9) of this section that will allow a determination to be 
made whether the control device is achieving the applicable performance 
requirements of Sec. 63.1281(d) or (e)(3). Owners or operators that install 
and operate a flare in accordance with Sec. 63.1281(d)(1)(iii) are exempt 
from the requirements of paragraphs (d)(4) and (5) of this section. The 
continuous parameter monitoring system must meet the following 
specifications and requirements:
    (i) Each continuous parameter monitoring system shall measure data 
values at least once every hour and record either:
    (A) Each measured data value; or
    (B) Each block average value for each 1-hour period or shorter 
periods calculated from all measured data values during each period. If 
values are measured more frequently than once per minute, a single value 
for each minute may be used to calculate the hourly (or shorter period) 
block average instead of all measured values.
    (ii) The monitoring system must be installed, calibrated, operated, 
and maintained in accordance with the manufacturer's specifications or 
other written procedures that provide reasonable assurance that the 
monitoring equipment is operating properly.
    (2) An owner or operator is exempted from the monitoring 
requirements specified in paragraphs (d)(3) through (9) of this section 
for the following types of control devices:
    (i) A boiler or process heater in which all vent streams are 
introduced with the primary fuel or are used as the primary fuel;
    (ii) A boiler or process heater with a design heat input capacity 
equal to or greater than 44 megawatts.
    (3) The owner or operator shall install, calibrate, operate, and 
maintain a device equipped with a continuous recorder to measure the 
values of operating parameters appropriate for the control device as 
specified in either paragraph (d)(3)(i), (d)(3)(ii), or (d)(3)(iii) of 
this section.
    (i) A continuous monitoring system that measures the following 
operating parameters as applicable:
    (A) For a thermal vapor incinerator, a temperature monitoring device 
equipped with a continuous recorder. The monitoring device shall have a 
minimum accuracy of 2 percent of the temperature being monitored in C, 
or 2.5 C, whichever value is greater. The temperature sensor shall be 
installed at a location in the combustion chamber downstream of the 
combustion zone.
    (B) For a catalytic vapor incinerator, a temperature monitoring 
device equipped with a continuous recorder. The device shall be capable 
of monitoring temperatures at two locations and have a minimum accuracy 
of 2 percent of the temperatures being monitored in C, or 2.5 C, 
whichever value is greater. One temperature sensor shall be installed in 
the vent stream at the nearest feasible point to the catalyst bed inlet 
and a second temperature sensor shall be installed in the vent stream at 
the nearest feasible point to the catalyst bed outlet.
    (C) For a flare, a heat sensing monitoring device equipped with a 
continuous recorder that indicates the continuous ignition of the pilot 
flame.
    (D) For a boiler or process heater with a design heat input capacity 
of less than 44 megawatts, a temperature monitoring device equipped with 
a continuous recorder. The temperature

[[Page 197]]

monitoring device shall have a minimum accuracy of 2 percent of the 
temperature being monitored in C, or 2.5 C, whichever value is 
greater. The temperature sensor shall be installed at a location in the 
combustion chamber downstream of the combustion zone.
    (E) For a condenser, a temperature monitoring device equipped with a 
continuous recorder. The temperature monitoring device shall have a 
minimum accuracy of 2 percent of the temperature being monitored in C, 
or 2.5 C, whichever value is greater. The temperature sensor shall be 
installed at a location in the exhaust vent stream from the condenser.
    (F) For a regenerative-type carbon adsorption system:
    (1) A continuous parameter monitoring system to measure and record 
the average total regeneration stream mass flow or volumetric flow 
during each carbon bed regeneration cycle. The integrating regenerating 
stream flow monitoring device must have an accuracy of 10 percent; and
    (2) A continuous parameter monitoring system to measure and record 
the average carbon bed temperature for the duration of the carbon bed 
steaming cycle and to measure the actual carbon bed temperature after 
regeneration and within 15 minutes of completing the cooling cycle. The 
temperature monitoring device shall have a minimum accuracy of 2 
percent of the temperature being monitored in C, or 2.5 C, whichever 
value is greater.
    (G) For a nonregenerative-type carbon adsorption system, the owner 
or operator shall monitor the design carbon replacement interval 
established using a performance test performed in accordance with Sec. 
63.1282(d)(3) or a design analysis in accordance with Sec. 
63.1282(d)(4)(i)(F) and shall be based on the total carbon working 
capacity of the control device and source operating schedule.
    (ii) A continuous monitoring system that measures the concentration 
level of organic compounds in the exhaust vent stream from the control 
device using an organic monitoring device equipped with a continuous 
recorder. The monitor must meet the requirements of Performance 
Specification 8 or 9 of appendix B of 40 CFR part 60 and must be 
installed, calibrated, and maintained according to the manufacturer's 
specifications.
    (iii) A continuous monitoring system that measures alternative 
operating parameters other than those specified in paragraph (d)(3)(i) 
or (d)(3)(ii) of this section upon approval of the Administrator as 
specified in Sec. 63.8(f)(1) through (5).
    (4) Using the data recorded by the monitoring system, the owner or 
operator must calculate the daily average value for each monitored 
operating parameter for each operating day. If HAP emissions unit 
operation is continuous, the operating day is a 24-hour period. If the 
HAP emissions unit operation is not continuous, the operating day is the 
total number of hours of control device operation per 24-hour period. 
Valid data points must be available for 75 percent of the operating 
hours in an operating day to compute the daily average.
    (5) For each operating parameter monitored in accordance with the 
requirements of paragraph (d)(3) of this section, the owner or operator 
shall comply with paragraph (d)(5)(i) of this section for all control 
devices, and when condensers are installed, the owner or operator shall 
also comply with paragraph (d)(5)(ii) of this section for condensers.
    (i) The owner or operator shall establish a minimum operating 
parameter value or a maximum operating parameter value, as appropriate 
for the control device, to define the conditions at which the control 
device must be operated to continuously achieve the applicable 
performance requirements of Sec. 63.1281(d)(1) or (e)(3)(ii). Each minimum 
or maximum operating parameter value shall be established as follows:
    (A) If the owner or operator conducts performance tests in 
accordance with the requirements of Sec. 63.1282(d)(3) to demonstrate that 
the control device achieves the applicable performance requirements 
specified in Sec. 63.1281(d)(1) or (e)(3)(ii), then the minimum operating 
parameter value or the maximum operating parameter value shall be 
established based on values measured during

[[Page 198]]

the performance test and supplemented, as necessary, by control device 
design analysis or control device manufacturer's recommendations or a 
combination of both.
    (B) If the owner or operator uses a control device design analysis 
in accordance with the requirements of Sec. 63.1282(d)(4) to demonstrate 
that the control device achieves the applicable performance requirements 
specified in Sec. 63.1281(d)(1) or (e)(3)(ii), then the minimum operating 
parameter value or the maximum operating parameter value shall be 
established based on the control device design analysis and may be 
supplemented by the control device manufacturer's recommendations.
    (ii) The owner or operator shall establish a condenser performance 
curve showing the relationship between condenser outlet temperature and 
condenser control efficiency. The curve shall be established as follows:
    (A) If the owner or operator conducts a performance test in 
accordance with the requirements of Sec. 63.1282(d)(3) to demonstrate that 
the condenser achieves the applicable performance requirements in Sec. 
63.1281(d)(1) or (e)(3)(ii), then the condenser performance curve shall 
be based on values measured during the performance test and supplemented 
as necessary by control device design analysis, or control device 
manufacturer's recommendations, or a combination or both.
    (B) If the owner or operator uses a control device design analysis 
in accordance with the requirements of Sec. 63.1282(d)(4)(i)(D) to 
demonstrate that the condenser achieves the applicable performance 
requirements specified in Sec. 63.1281(d)(1) or (e)(3)(ii), then the 
condenser performance curve shall be based on the condenser design 
analysis and may be supplemented by the control device manufacturer's 
recommendations.
    (C) As an alternative to paragraphs (d)(5)(ii)(A) and (B) of this 
section, the owner or operator may elect to use the procedures 
documented in the GRI report entitled, ``Atmospheric Rich/Lean Method 
for Determining Glycol Dehydrator Emissions'' (GRI-95/0368.1) as inputs 
for the model GRI-GLYCalcTM, Version 3.0 or higher, to 
generate a condenser performance curve.
    (6) An excursion for a given control device is determined to have 
occurred when the monitoring data or lack of monitoring data result in 
any one of the criteria specified in paragraphs (d)(6)(i) through 
(d)(6)(iv) of this section being met. When multiple operating parameters 
are monitored for the same control device and during the same operating 
day, and more than one of these operating parameters meets an excursion 
criterion specified in paragraphs (d)(6)(i) through (d)(6)(iv) of this 
section, then a single excursion is determined to have occurred for the 
control device for that operating day.
    (i) An excursion occurs when the daily average value of a monitored 
operating parameter is less than the minimum operating parameter limit 
(or, if applicable, greater than the maximum operating parameter limit) 
established for the operating parameter in accordance with the 
requirements of paragraph (d)(5)(i) of this section.
    (ii) An excursion occurs when average condenser efficiency 
calculated according to the requirements specified in Sec. 
63.1282(f)(2)(iii) is less than 95.0 percent, as specified in Sec. 
63.1282(f)(3).
    (iii) An excursion occurs when the monitoring data are not available 
for at least 75 percent of the operating hours in a day.
    (iv) If the closed-vent system contains one or more bypass devices 
that could be used to divert all or a portion of the gases, vapors, or 
fumes from entering the control device, an excursion occurs when:
    (A) For each bypass line subject to Sec. 63.1281(c)(3)(i)(A) the flow 
indicator indicates that flow has been detected and that the stream has 
been diverted away from the control device to the atmosphere.
    (B) For each bypass line subject to Sec. 63.1281(c)(3)(i)(B), if the 
seal or closure mechanism has been broken, the bypass line valve 
position has changed, the key for the lock-and-key type lock has been 
checked out, or the car-seal has broken.
    (7) For each excursion, except as provided for in paragraph (d)(8) 
of this section, the owner or operator shall be deemed to have failed to 
have applied control in a manner that achieves the required operating 
parameter limits.

[[Page 199]]

Failure to achieve the required operating parameter limits is a 
violation of this standard.
    (8) An excursion is not a violation of the operating parameter limit 
as specified in paragraphs (d)(8)(i) and (d)(8)(ii) of this section.
    (i) An excursion does not count toward the number of excused 
excursions allowed under paragraph (d)(8)(ii) of this section when the 
excursion occurs during any one of the following periods:
    (A) During a period of startup, shutdown, or malfunction when the 
affected facility is operated during such period in accordance with the 
facility's startup, shutdown, and malfunction plan; or
    (B) During periods of non-operation of the unit or the process that 
is vented to the control device (resulting in cessation of HAP emissions 
to which the monitoring applies).
    (ii) For each control device, or combinations of control devices, 
installed on the same HAP emissions unit, one excused excursion is 
allowed per semiannual period for any reason. The initial semiannual 
period is the 6-month reporting period addressed by the first Periodic 
Report submitted by the owner or operator in accordance with Sec. 
63.1285(e) of this subpart.
    (9) Nothing in paragraphs (d)(1) through (d)(8) of this section 
shall be construed to allow or excuse a monitoring parameter excursion 
caused by any activity that violates other applicable provisions of this 
subpart.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34557, June 29, 2001]

    Effective Date Note: At 68 FR 37357, June 23, 2003, Sec. 63.1283 was 
amended by revising the introductory text of paragraph (c)(2) and adding 
paragraph (c)(2)(iii) effective August 22, 2003. For the convenience of 
the user, the revised and added text is set forth as follows:

Sec. 63.1283  Inspection and monitoring requirements.

                                * * * * *

    (c) * * *
    (2) Except as provided in paragraphs (c)(5) and (6) of this section, 
each closed-vent system shall be inspected according to the procedures 
and schedule specified in paragraphs (c)(2)(i) and (ii) of this section 
and each bypass device shall be inspected according to the procedures of 
(c)(2)(iii) of this section.

                                * * * * *

    (iii) For each bypass device, except as provided for in Sec. 
63.1281(c)(3)(ii), the owner or operator shall either:
    (A) At the inlet to the bypass device that could divert the steam 
away from the control device to the atmosphere, set the flow indicator 
to take a reading at least once every 15 minutes; or
    (B) If the bypass device valve installed at the inlet to the bypass 
device is secured in the non-diverting position using a car-seal or a 
lock-and-key type configuration, visually inspect the seal or closure 
mechanism at least once every month to verify that the valve is 
maintained in the non-diverting position and the vent stream is not 
diverted through the bypass device.

                                * * * * *

Sec. 63.1284  Recordkeeping requirements.

    (a) The recordkeeping provisions of subpart A of this part, that 
apply and those that do not apply to owners and operators of facilities 
subject to this subpart are listed in Table 2 of this subpart.
    (b) Except as specified in paragraphs (c) and (d) of this section, 
each owner or operator of a facility subject to this subpart shall 
maintain the records specified in paragraphs (b)(1) through (b)(10) of 
this section:
    (1) The owner or operator of an affected source subject to the 
provisions of this subpart shall maintain files of all information 
(including all reports and notifications) required by this subpart. The 
files shall be retained for at least 5 years following the date of each 
occurrence, measurement, maintenance, corrective action, report or 
period.
    (i) All applicable records shall be maintained in such a manner that 
they can be readily accessed.
    (ii) The most recent 12 months of records shall be retained on site 
or shall be accessible from a central location by computer or other 
means that provides access within 2 hours after a request.
    (iii) The remaining 4 years of records may be retained offsite.
    (iv) Records may be maintained in hard copy or computer-readable 
form

[[Page 200]]

including, but not limited to, on paper, microfilm, computer, floppy 
disk, magnetic tape, or microfiche.
    (2) Records specified in Sec. 63.10(b)(2);
    (3) Records specified in Sec. 63.10(c) for each monitoring system 
operated by the owner or operator in accordance with the requirements of 
Sec. 63.1283(d). Notwithstanding the previous sentence, monitoring data 
recorded during periods identified in paragraphs (b)(3)(i) through (iv) 
of this section shall not be included in any average or percent leak 
rate computed under this subpart. Records shall be kept of the times and 
durations of all such periods and any other periods during process or 
control device operation when monitors are not operating.
    (i) Monitoring system breakdowns, repairs, calibration checks, and 
zero (low-level) and high-level adjustments;
    (ii) Startup, shutdown, and malfunction events. During startup, 
shutdown and malfunction events, the owner or operator shall maintain 
records indicating whether or not the startup, shutdown, or malfunction 
plan, required under Sec. 63.1272(d), was followed.
    (iii) Periods of non-operation resulting in cessation of the 
emissions to which the monitoring applies; and
    (iv) Excursions due to invalid data as defined in Sec. 
63.1283(d)(6)(iii).
    (4) Each owner or operator using a control device to comply with Sec. 
63.1274 shall keep the following records up-to-date and readily 
accessible:
    (i) Continuous records of the equipment operating parameters 
specified to be monitored under Sec. 63.1283(d) or specified by the 
Administrator in accordance with Sec. 63.1283(d)(3)(iii). For flares, the 
hourly records and records of pilot flame outages specified in paragraph 
(e) of this section shall be maintained in place of continuous records.
    (ii) Records of the daily average value of each continuously 
monitored parameter for each operating day determined according to the 
procedures specified in Sec. 63.1283(d)(4). For flares, the records 
required in paragraph (e) of this section.
    (iii) Hourly records of whether the flow indicator specified under Sec. 
63.1281(c)(3)(i)(A) was operating and whether flow was detected at any 
time during the hour, as well as records of the times and durations of 
all periods when the vent stream is diverted from the control device or 
the monitor is not operating.
    (iv) Where a seal or closure mechanism is used to comply with Sec. 
63.1281(c)(3)(i)(B), hourly records of flow are not required. In such 
cases, the owner or operator shall record that the monthly visual 
inspection of the seals or closure mechanism has been done, and shall 
record the duration of all periods when the seal mechanism is broken, 
the bypass line valve position has changed, or the key for a lock-and-
key type lock has been checked out, and records of any car-seal that has 
broken.
    (5) Records identifying all parts of the closed-vent system that are 
designated as unsafe to inspect in accordance with Sec. 63.1283(c)(5), an 
explanation of why the equipment is unsafe to inspect, and the plan for 
inspecting the equipment.
    (6) Records identifying all parts of the closed-vent system that are 
designated as difficult to inspect in accordance with Sec. 63.1283(c)(6), 
an explanation of why the equipment is difficult to inspect, and the 
plan for inspecting the equipment.
    (7) For each inspection conducted in accordance with Sec. 63.1283(c), 
during which a leak or defect is detected, a record of the information 
specified in paragraphs (b)(7)(i) through (b)(7)(viii) of this section.
    (i) The instrument identification numbers, operator name or 
initials, and identification of the equipment.
    (ii) The date the leak or defect was detected and the date of the 
first attempt to repair the leak or defect.
    (iii) Maximum instrument reading measured by the method specified in 
Sec. 63.1282(b) after the leak or defect is successfully repaired or 
determined to be nonrepairable.
    (iv) ``Repair delayed'' and the reason for the delay if a leak or 
defect is not repaired within 15 calendar days after discovery of the 
leak or defect.
    (v) The name, initials, or other form of identification of the owner 
or operator (or designee) whose decision it was that repair could not be 
effected without a shutdown.

[[Page 201]]

    (vi) The expected date of successful repair of the leak or defect if 
a leak or defect is not repaired within 15 calendar days.
    (vii) Dates of shutdowns that occur while the equipment is 
unrepaired.
    (viii) The date of successful repair of the leak or defect.
    (8) For each inspection conducted in accordance with Sec. 63.1283(c) 
during which no leaks or defects are detected, a record that the 
inspection was performed, the date of the inspection, and a statement 
that no leaks or defects were detected.
    (9) Records of glycol dehydration unit baseline operations 
calculated as required under Sec. 63.1281(e)(1).
    (10) Records required in Sec. 63.1281(e)(3)(i) documenting that the 
facility continues to operate under the conditions specified in Sec. 
63.1281(e)(2).
    (c) An owner or operator that elects to comply with the benzene 
emission limit specified in Sec. 63.1275(b)(1)(ii) shall document, to the 
Administrator's satisfaction, the following items:
    (1) The method used for achieving compliance and the basis for using 
this compliance method; and
    (2) The method used for demonstrating compliance with 0.90 megagrams 
per year of benzene.
    (3) Any information necessary to demonstrate compliance as required 
in the methods specified in paragraphs (c)(1) and (c)(2) of this 
section.
    (d) An owner or operator that is exempt from control requirements 
under Sec. 63.1274(d) shall maintain the records specified in paragraph 
(d)(1) or (d)(2) of this section, as appropriate, for each glycol 
dehydration unit that is not controlled according to the requirements of 
Sec. 63.1274(c).
    (1) The actual annual average natural gas throughput (in terms of 
natural gas flowrate to the glycol dehydration unit per day), as 
determined in accordance with Sec. 63.1282(a)(1); or
    (2) The actual average benzene emissions (in terms of benzene 
emissions per year), as determined in accordance with Sec. 63.1282(a)(2).
    (e) Record the following when using a flare to comply with Sec. 
63.1281(d):
    (1) Flare design (i.e., steam-assisted, air-assisted, or non-
assisted);
    (2) All visible emission readings, heat content determinations, 
flowrate measurements, and exit velocity determinations made during the 
compliance determination required by Sec. 63.1282(d)(2); and
    (3) All hourly records and other recorded periods when the pilot 
flame is absent.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34558, June 29, 2001]

Sec. 63.1285  Reporting requirements.

    (a) The reporting provisions of subpart A, of this part that apply 
and those that do not apply to owners and operators of facilities 
subject to this subpart are listed in Table 2 of this subpart.
    (b) Each owner or operator of a facility subject to this subpart 
shall submit the information listed in paragraphs (b)(1) through (b)(6) 
of this section, except as provided in paragraph (b)(7) of this section.
    (1) The initial notifications required for existing affected sources 
under Sec. 63.9(b)(2) shall be submitted by 1 year after an affected source 
becomes subject to the provisions of this subpart or by June 17, 2000, 
whichever is later. Affected sources that are major sources on or before 
June 17, 2000 and plan to be area sources by June 17, 2002 shall include 
in this notification a brief, nonbinding description of a schedule for 
the action(s) that are planned to achieve area source status.
    (2) The date of the performance evaluation as specified in Sec. 
63.8(e)(2), required only if the owner or operator is requested by the 
Administrator to conduct a performance evaluation for a continuous 
monitoring system. A separate notification of the performance evaluation 
is not required if it is included in the initial notification submitted 
in accordance with paragraph (b)(1) of this section.
    (3) The planned date of a performance test at least 60 days before 
the test in accordance with Sec. 63.7(b). Unless requested by the 
Administrator, a site-specific test plan is not required by this 
subpart. If requested by the Administrator, the owner or operator must 
also submit the site-specific test

[[Page 202]]

plan required by Sec. 63.7(c) with the notification of the performance 
test. A separate notification of the performance test is not required if 
it is included in the initial notification submitted in accordance with 
paragraph (b)(1) of this section.
    (4) A Notification of Compliance Status Report as described in 
paragraph (d) of this section;
    (5) Periodic Reports as described in paragraph (e) of this section; 
and
    (6) Startup, shutdown, and malfunction reports, as specified in Sec. 
63.10(d)(5), shall be submitted as required. Separate startup, shutdown, 
or malfunction reports as described in Sec. 63.10(d)(5)(i) are not required 
if the information is included in the Periodic Report specified in 
paragraph (e) of this section.
    (7) Each owner or operator of a glycol dehydration unit subject to 
this subpart that is exempt from the control requirements for glycol 
dehydration unit process vents in Sec. 63.1275, is exempt from all 
reporting requirements for major sources in this subpart for that unit.
    (c) [Reserved]
    (d) Each owner or operator of a source subject to this subpart shall 
submit a Notification of Compliance Status Report as required under Sec. 
63.9(h) within 180 days after the compliance date specified in Sec. 
63.1270(d). In addition to the information required under Sec. 63.9(h), the 
Notification of Compliance Status Report shall include the information 
specified in paragraphs (d)(1) through (10) of this section. This 
information may be submitted in an operating permit application, in an 
amendment to an operating permit application, in a separate submittal, 
or in any combination of the three. If all of the information required 
under this paragraph have been submitted at any time prior to 180 days 
after the applicable compliance dates specified in Sec. 63.1270(d), a 
separate Notification of Compliance Status Report is not required. If an 
owner or operator submits the information specified in paragraphs (d)(1) 
through (10) of this section at different times, and/or different 
submittals, subsequent submittals may refer to previous submittals 
instead of duplicating and resubmitting the previously submitted 
information.
    (1) If a closed-vent system and a control device other than a flare 
are used to comply with Sec. 63.1274, the owner or operator shall submit:
    (i) The design analysis documentation specified in Sec. 63.1282(d)(4) 
of this subpart if the owner or operator elects to prepare a design 
analysis; or
    (ii) If the owner or operator elects to conduct a performance test, 
the performance test results including the information specified in 
paragraphs (d)(1)(ii)(A) and (B) of this section. Results of a 
performance test conducted prior to the compliance date of this subpart 
can be used provided that the test was conducted using the methods 
specified in Sec. 63.1282(d)(3), and that the test conditions are 
representative of current operating conditions.
    (A) The percent reduction of HAP or TOC, or the outlet concentration 
of HAP or TOC (parts per million by volume on a dry basis), determined 
as specified in Sec. 63.1282(d)(3) of this subpart; and
    (B) The value of the monitored parameters specified in Sec. 63.1283(d) 
of this subpart, or a site-specific parameter approved by the permitting 
agency, averaged over the full period of the performance test.
    (iii) The results of the closed-vent system initial inspections 
performed according to the requirements in Sec. 63.1283(c)(2)(i) and (ii).
    (2) If a closed-vent system and a flare are used to comply with Sec. 
63.1274, the owner or operator shall submit performance test results 
including the information in paragraphs (d)(2)(i) and (ii) of this 
section.
    (i) All visible emission readings, heat content determinations, 
flowrate measurements, and exit velocity determinations made during the 
compliance determination required by Sec. 63.1282(d)(2) of this subpart, 
and
    (ii) A statement of whether a flame was present at the pilot light 
over the full period of the compliance determination.
    (iii) The results of the closed-vent system initial inspections 
performed according to the requirements in Sec. 63.1283(c)(2)(i) and (ii).
    (3) The owner or operator shall submit one complete test report for 
each

[[Page 203]]

test method used for a particular source.
    (i) For additional tests performed using the same test method, the 
results specified in paragraph (d)(1)(ii) of this section shall be 
submitted, but a complete test report is not required.
    (ii) A complete test report shall include a sampling site 
description, description of sampling and analysis procedures and any 
modifications to standard procedures, quality assurance procedures, 
record of operating conditions during the test, record of preparation of 
standards, record of calibrations, raw data sheets for field sampling, 
raw data sheets for field and laboratory analyses, documentation of 
calculations, and any other information required by the test method.
    (4) For each control device other than a flare used to meet the 
requirements of Sec. 63.1274, the owner or operator shall submit the 
information specified in paragraphs (d)(4)(i) through (iii) of this 
section for each operating parameter required to be monitored in 
accordance with the requirements of Sec. 63.1283(d).
    (i) The minimum operating parameter value or maximum operating 
parameter value, as appropriate for the control device, established by 
the owner or operator to define the conditions at which the control 
device must be operated to continuously achieve the applicable 
performance requirements of Sec. 63.1281(d)(1) or (e)(3)(ii).
    (ii) An explanation of the rationale for why the owner or operator 
selected each of the operating parameter values established in Sec. 
63.1283(d)(5) of this subpart. This explanation shall include any data 
and calculations used to develop the value, and a description of why the 
chosen value indicates that the control device is operating in 
accordance with the applicable requirements of Sec. 63.1281(d)(1) or 
(e)(3)(ii).
    (iii) A definition of the source's operating day for purposes of 
determining daily average values of monitored parameters. The definition 
shall specify the times at which an operating day begins and ends.
    (5) Results of any continuous monitoring system performance 
evaluations shall be included in the Notification of Compliance Status 
Report.
    (6) After a title V permit has been issued to the owner or operator 
of an affected source, the owner or operator of such source shall comply 
with all requirements for compliance status reports contained in the 
source's title V permit, including reports required under this subpart. 
After a title V permit has been issued to the owner or operator of an 
affected source, and each time a notification of compliance status is 
required under this subpart, the owner or operator of such source shall 
submit the notification of compliance status to the appropriate 
permitting authority following completion of the relevant compliance 
demonstration activity specified in this subpart.
    (7) The owner or operator that elects to comply with the 
requirements of Sec. 63.1275(b)(1)(ii) shall submit the records required 
under Sec. 63.1284(c).
    (8) The owner or operator shall submit an analysis demonstrating 
whether an affected source is a major source using the maximum 
throughput calculated according to Sec. 63.1270(a).
    (9) The owner or operator shall submit a statement as to whether the 
source has complied with the requirements of this subpart.
    (10) The owner or operator shall submit the analysis prepared under 
Sec. 63.1281(e)(2) to demonstrate that the conditions by which the facility 
will be operated to achieve an overall HAP emission reduction of 95.0 
percent through process modifications or a combination of process 
modifications and one or more control devices.
    (e) Periodic Reports. An owner or operator shall prepare Periodic 
Reports in accordance with paragraphs (e)(1) and (2) of this section and 
submit them to the Administrator.
    (1) An owner or operator shall submit Periodic Reports semiannually 
beginning 60 calendar days after the end of the applicable reporting 
period. The first report shall be submitted no later than 240 days after 
the date the Notification of Compliance Status Report is due and shall 
cover the 6-month period beginning on the date the Notification of 
Compliance Status Report is due.
    (2) The owner or operator shall include the information specified in 
paragraphs (e)(2)(i) through (ix) of this section, as applicable.

[[Page 204]]

    (i) The information required under Sec. 63.10(e)(3). For the purposes 
of this subpart and the information required under Sec. 63.10(e)(3), 
excursions (as defined in Sec. 63.1283(d)(6)) shall be considered excess 
emissions.
    (ii) A description of all excursions as defined in Sec. 63.1283(d)(6) 
of this subpart that have occurred during the 6-month reporting period.
    (A) For each excursion caused when the daily average value of a 
monitored operating parameter is less than the minimum operating 
parameter limit (or, if applicable, greater than the maximum operating 
parameter limit), as specified in Sec. 63.1283(d)(6)(i), the report must 
include the daily average values of the monitored parameter, the 
applicable operating parameter limit, and the date and duration of the 
period that the excursion occurred.
    (B) For each excursion caused when the 30-day average condenser 
control efficiency is less than 95.0 percent, as specified in Sec. 
63.1283(d)(6)(ii), the report must include the 30-day average values of 
the condenser control efficiency, and the date and duration of the 
period that the excursion occurred.
    (C) For each excursion caused by lack of monitoring data, as 
specified in Sec. 63.1283(d)(6)(iii), the report must include the date and 
duration of period when the monitoring data were not collected and the 
reason why the data were not collected.
    (iii) For each inspection conducted in accordance with Sec. 63.1283(c) 
during which a leak or defect is detected, the records specified in Sec. 
63.1284(b)(7) must be included in the next Periodic Report.
    (iv) For each closed-vent system with a bypass line subject to Sec. 
63.1281(c)(3)(i)(A), records required under Sec. 63.1284(b)(4)(iii) of all 
periods when the vent stream is diverted from the control device through 
a bypass line. For each closed-vent system with a bypass line subject to 
Sec. 63.1281(c)(3)(i)(B), records required under Sec. 63.1284(b)(4)(iv) of all 
periods in which the seal or closure mechanism is broken, the bypass 
valve position has changed, or the key to unlock the bypass line valve 
was checked out.
    (v) If an owner or operator elects to comply with Sec. 
63.1275(b)(1)(ii), the records required under Sec. 63.1284(c)(3).
    (vi) The information in paragraphs (e)(2)(vi)(A) and (B) of this 
section shall be stated in the Periodic Report, when applicable.
    (A) No excursions.
    (B) No continuous monitoring system has been inoperative, out of 
control, repaired, or adjusted.
    (vii) Any change in compliance methods as specified in Sec. 63.1282(e).
    (viii) If the owner or operator elects to comply with Sec. 
63.1275(c)(2), the records required under Sec. 63.1284(b)(10).
    (ix) For flares, the records specified in Sec. 63.1284(e).
    (f) Notification of process change. Whenever a process change is 
made, or a change in any of the information submitted in the 
Notification of Compliance Status Report, the owner or operator shall 
submit a report within 180 days after the process change is made or as a 
part of the next Periodic Report as required under paragraph (e) of this 
section, whichever is sooner. The report shall include:
    (1) A brief description of the process change;
    (2) A description of any modification to standard procedures or 
quality assurance procedures;
    (3) Revisions to any of the information reported in the original 
Notification of Compliance Status Report under paragraph (d) of this 
section; and
    (4) Information required by the Notification of Compliance Status 
Report under paragraph (d) of this section for changes involving the 
addition of processes or equipment.

[64 FR 32648, June 17, 1999, as amended at 66 FR 34558, June 29, 2001]

Sec. 63.1286  Delegation of authority.

    (a) In delegating implementation and enforcement authority to a 
State under section 112(l) of the Act, the authorities contained in 
paragraph (b) of this section shall be retained by the Administrator and 
not transferred to a State.
    (b) Authorities will not be delegated to States for Secs. 63.1282 
and 63.1287 of this subpart.

    Effective Date Note: At 68 FR 37357, June 23, 2003, Sec. 63.1286 was 
revised effective August

[[Page 205]]

22, 2003. For the convenience of the user, the revised text is set forth 
as follows:

Sec. 63.1286  Implementation and enforcement.

    (a) This subpart can be implemented and enforced by the U.S. EPA, or 
a delegated authority such as the applicable State, local, or Tribal 
agency. If the U.S. EPA Administrator has delegated authority to a 
State, local, or Tribal agency, then that agency, in addition to the 
U.S. EPA, has the authority to implement and enforce this subpart. 
Contact the applicable U.S. EPA Regional Office to find out if this 
subpart is delegated to a State, local, or Tribal agency.
    (b) In delegating implementation and enforcement authority of this 
subpart to a State, local, or Tribal agency under subpart E of this 
part, the authorities contained in paragraph (c) of this section are 
retained by the Administrator of U.S. EPA and cannot be transferred to 
the State, local, or Tribal agency.
    (c) The authorities that cannot be delegated to State, local, or 
Tribal agencies are as specified in paragraphs (c)(1) through (4) of 
this section.
    (1) Approval of alternatives to the requirements in Secs. 63.1270, 
63.1274 through 63.1275, 63.1281, and 63.1287.
    (2) Approval of major alternatives to test methods under Sec. 
63.7(e)(2)(ii) and (f), as defined in Sec. 63.90, and as required in this 
subpart.
    (3) Approval of major alternatives to monitoring under Sec. 63.8(f), as 
defined in Sec. 63.90, and as required in this subpart.
    (4) Approval of major alternatives to recordkeeping and reporting 
under Sec. 63.10(f), as defined in Sec. 63.90, and as required in this 
subpart.

Sec. 63.1287  Alternative means of emission limitation.

    (a) If, in the judgment of the Administrator, an alternative means 
of emission limitation will achieve a reduction in HAP emissions at 
least equivalent to the reduction in HAP emissions from that source 
achieved under the applicable requirements in Secs. 63.1274 through 
63.1281, the Administrator will publish a notice in the Federal Register 
permitting the use of the alternative means for purposes of compliance 
with that requirement. The notice may condition the permission on 
requirements related to the operation and maintenance of the alternative 
means.
    (b) Any notice under paragraph (a) of this section shall be 
published only after public notice and an opportunity for a hearing.
    (c) Any person seeking permission to use an alternative means of 
compliance under this section shall collect, verify, and submit to the 
Administrator information showing that this means achieves equivalent 
emission reductions.

Secs. 63.1288-63.1289  [Reserved]

               Appendix to Subpart HHH of Part 63--Tables

     Table 1--List of Hazardous Air Pollutants (HAP) for Subpart HHH

------------------------------------------------------------------------
             CAS Number \a\                       Chemical name
------------------------------------------------------------------------
75070..................................  Acetaldehyde
71432..................................  Benzene (includes benzene in
                                          gasoline)
75150..................................  Carbon disulfide
463581.................................  Carbonyl sulfide
100414.................................  Ethyl benzene
107211.................................  Ethylene glycol
75050..................................  Acetaldehyde
50000..................................  Formaldehyde
110543.................................  n-Hexane
91203..................................  Naphthalene
108883.................................  Toluene
540841.................................  2,2,4-Trimethylpentane
1330207................................  Xylenes (isomers and mixture)
95476..................................  o-Xylene
108383.................................  m-Xylene
106423.................................  p-Xylene
------------------------------------------------------------------------
a CAS numbers refer to the Chemical Abstracts Services registry number
  assigned to specific compounds, isomers, or mixtures of compounds.

   Table 2 to Subpart HHH of Part 63--Applicability of 40 CFR Part 63 
                    General Provisions to Subpart HHH

------------------------------------------------------------------------
                                  Applicable to
General provisions reference       subpart HHH           Explanation
------------------------------------------------------------------------
Sec. 63.1(a)(1)................  Yes
Sec. 63.1(a)(2)................  Yes
Sec. 63.1(a)(3)................  Yes
Sec. 63.1(a)(4)................  Yes
Sec. 63.1(a)(5)................  No..................  Section reserved.
Sec. 63.1(a)(6) through (a)(8).  Yes
Sec. 63.1(a)(9)................  No..................  Section reserved.
Sec. 63.1(a)(10)...............  Yes

[[Page 206]]


Sec. 63.1(a)(11)...............  Yes
Sec. 63.1(a)(12) through         Yes
 (a)(14).
Sec. 63.1(b)(1)................  No..................  Subpart HHH
                                                     specifies
                                                     applicability.
Sec. 63.1(b)(2)................  Yes
Sec. 63.1(b)(3)................  No..................
Sec. 63.1(c)(1)................  No..................  Subpart HHH
                                                     specifies
                                                     applicability.
Sec. 63.1(c)(2)................  No
Sec. 63.1(c)(3)................  No..................  Section reserved.
Sec. 63.1(c)(4)................  Yes
Sec. 63.1(c)(5)................  Yes
Sec. 63.1(d)...................  No..................  Section reserved.
Sec. 63.1(e)...................  Yes
Sec. 63.2......................  Yes.................  Except definition of
                                                     major source is
                                                     unique for this
                                                     source category and
                                                     there are
                                                     additional
                                                     definitions in
                                                     subpart HHH.
Sec. 63.3(a) through (c).......  Yes
Sec. 63.4(a)(1) through (a)(3).  Yes
Sec. 63.4(a)(4)................  No..................  Section reserved.
Sec. 63.4(a)(5)................  Yes
Sec. 63.4(b)...................  Yes
Sec. 63.4(c)...................  Yes
Sec. 63.5(a)(1)................  Yes
Sec. 63.5(a)(2)................  No..................  Preconstruction
                                                     review required
                                                     only for major
                                                     sources that
                                                     commence
                                                     construction after
                                                     promulgation of the
                                                     standard.
Sec. 63.5(b)(1)................  Yes
Sec. 63.5(b)(2)................  No..................  Section reserved.
Sec. 63.5(b)(3)................  Yes
Sec. 63.5(b)(4)................  Yes
Sec. 63.5(b)(5)................  Yes
Sec. 63.5(b)(6)................  Yes
Sec. 63.5(c)...................  No..................  Section reserved.
Sec. 63.5(d)(1)................  Yes
Sec. 63.5(d)(2)................  Yes
Sec. 63.5(d)(3)................  Yes
Sec. 63.5(d)(4)................  Yes
Sec. 63.5(e)...................  Yes
Sec. 63.5(f)(1)................  Yes
Sec. 63.5(f)(2)................  Yes
Sec. 63.6(a)...................  Yes
Sec. 63.6(b)(1)................  Yes
Sec. 63.6(b)(2)................  Yes
Sec. 63.6(b)(3)................  Yes
Sec. 63.6(b)(4)................  Yes
Sec. 63.6(b)(5)................  Yes
Sec. 63.6(b)(6)................  No..................  Section reserved.
Sec. 63.6(b)(7)................  Yes
Sec. 63.6(c)(1)................  Yes
Sec. 63.6(c)(2)................  Yes
Sec. 63.6(c)(3) and (c)(4).....  No..................  Section reserved.
Sec. 63.6(c)(5)................  Yes
Sec. 63.6(d)...................  No..................  Section reserved.
Sec. 63.6(e)...................  Yes
Sec. 63.6(e)...................  Yes                   Except as otherwise
                                                     specified.
Sec. 63.6(e)(1)(i).............  No..................  Addressed in Sec.
                                                     63.1272.
Sec. 63.6(e)(1)(ii)............  Yes
Sec. 63.6(e)(1)(iii)...........  Yes
Sec. 63.6(e)(2)................  Yes
Sec. 63.6(e)(3)(i).............  Yes.................  Except as otherwise
                                                     specified.
Sec. 63.6(e)(3)(i)(A)..........  No..................  Addressed by Sec.
                                                     63.1272(c).
Sec. 63.6(e)(3)(i)(B)..........  Yes
Sec. 63.6(e)(3)(i)(C)..........  Yes
Sec. 63.6(e)(3)(ii) through      Yes
 (3)(vi).
Sec. 63.6(e)(3)(vii)...........
Sec. 63.6(e)(3)(vii) (A).......  Yes
Sec. 63.6(e)(3)(vii) (B).......  Yes.................  Except that the plan
                                                     must provide for
                                                     operation in
                                                     compliance with Sec.
                                                     63.1272(c).
Sec. 63.6(e)(3)(vii) (C).......  Yes
Sec. 63.6(e)3)(viii)...........  Yes
Sec. 63.6(f)(1)................  Yes.................  ....................
Sec. 63.6(f)(2)................  Yes.................  ....................
Sec. 63.6(f)(3)................  Yes.................  ....................
Sec. 63.6(g)...................  Yes.................  ....................

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Sec. 63.6(h)...................  No..................  Subpart HHH does not
                                                     contain opacity or
                                                     visible emission
                                                     standards.
Sec. 63.6(i)(1)-(i)(14)........  Yes.................  ....................
Sec. 63.6(i)(15)...............  No..................  Section reserved.
Sec. 63.6(i)(16)...............  Yes.................  ....................
Sec. 63.6(j)...................  Yes.................  ....................
Sec. 63.7(a)(1)................  Yes.................  ....................
Sec. 63.7(a)(2)................  Yes.................  But the performance
                                                     test results must
                                                     be submitted within
                                                     180 days after the
                                                     compliance date.
Sec. 63.7(a)(3)................  Yes.................  ....................
Sec. 63.7(b)...................  Yes.................  ....................
Sec. 63.7(c)...................  Yes.................  ....................
Sec. 63.7(d)...................  Yes.................  ....................
Sec. 63.7(e)(1)................  Yes
Sec. 63.7(e)(2)................  Yes
Sec. 63.7(e)(3)................  Yes
Sec. 63.7(e)(4)................  Yes
Sec. 63.7(f)...................  Yes
Sec. 63.7(g)...................  Yes
Sec. 63.7(h)...................  Yes
Sec. 63.8(a)(1)................  Yes
Sec. 63.8(a)(2)................  Yes
Sec. 63.8(a)(3)................  No..................  Section reserved.
Sec. 63.8(a)(4)................  Yes
Sec. 63.8(b)(1)................  Yes
Sec. 63.8(b)(2)................  Yes
Sec. 63.8(b)(3)................  Yes
Sec. 63.8(c)(1)................  Yes
Sec. 63.8(c)(2)................  Yes
Sec. 63.8(c)(3)................  Yes
Sec. 63.8(c)(4)................  No..................
Sec. 63.8(c)(5) through (c)(8).  Yes
Sec. 63.8(d)...................  Yes
Sec. 63.8(e)...................  Yes.................  Subpart HHH does not
                                                     specifically
                                                     require continuous
                                                     emissions monitor
                                                     performance
                                                     evaluations,
                                                     however, the
                                                     Administrator can
                                                     request that one be
                                                     conducted.
Sec. 63.8(f)(1) through (f)(5).  Yes
Sec. 63.8(f)(6)................  No..................  Subpart HHH does not
                                                     require continuous
                                                     emissions
                                                     monitoring.
Sec. 63.8(g)...................  No..................  Subpart HHH
                                                     specifies
                                                     continuous
                                                     monitoring system
                                                     data reduction
                                                     requirements.
Sec. 63.9(a)...................  Yes
Sec. 63.9(b)(1)................  Yes
Sec. 63.9(b)(2)................  Yes.................  Existing sources are
                                                     given 1 year
                                                     (rather than 120
                                                     days) to submit
                                                     this notification.
Sec. 63.9(b)(3)................  Yes
Sec. 63.9(b)(4)................  Yes
Sec. 63.9(b)(5)................  Yes
Sec. 63.9(c)...................  Yes
Sec. 63.9(d)...................  Yes
Sec. 63.9(e)...................  Yes
Sec. 63.9(f)...................  No..................
Sec. 63.9(g)...................  Yes
Sec. 63.9(h)(1) through (h)(3).  Yes
Sec. 63.9(h)(4)................  No..................  Section reserved.
Sec. 63.9(h)(5) and (h)(6).....  Yes
Sec. 63.9(i)...................  Yes
Sec. 63.9(j)...................  Yes
Sec. 63.10(a)..................  Yes
Sec. 63.10(b)(1)...............  Yes.................  Section
                                                     63.1284(b)(1)
                                                     requires sources to
                                                     maintain the most
                                                     recent 12 months of
                                                     data on site and
                                                     allows offsite
                                                     storage for the
                                                     remaining 4 years
                                                     of data.
Sec. 63.10(b)(2)...............  Yes
Sec. 63.10(b)(3)...............  No
Sec. 63.10(c)(1)...............  Yes
Sec. 63.10(c)(2) through (c)(4)  No..................  Sections reserved.
Sec. 63.10(c)(5) through (c)(8)  Yes
Sec. 63.10(c)(9)...............  No..................  Section reserved.
Sec. 63.10(c)(10) through        Yes
 (c)(15).
Sec. 63.10(d)(1)...............  Yes

[[Page 208]]


Sec. 63.10(d)(2)...............  Yes
Sec. 63.10(d)(3)...............  Yes
Sec. 63.10(d)(4)...............  Yes
Sec. 63.10(d)(5)...............  Yes.................  Subpart HHH requires
                                                     major sources to
                                                     submit a startup,
                                                     shutdown and
                                                     malfunction report
                                                     semi-annually.
Sec. 63.10(e)(1)...............  Yes
Sec. 63.10(e)(2)...............  Yes
Sec. 63.10(e)(3)(i)............  Yes.................  Subpart HHH requires
                                                     major sources to
                                                     submit Periodic
                                                     Reports semi-
                                                     annually.
Sec. 63.10(e)(3)(i)(A).........  Yes
Sec. 63.10(e)(3)(i)(B).........  Yes
Sec. 63.10(e)(3)(i)(C).........  No..................  Subpart HHH does not
                                                     require quarterly
                                                     reporting for
                                                     excess emissions.
Sec. 63.10(e)(3)(ii) through     Yes
 (e)(3)(viii).
Sec. 63.10(f)..................  Yes
Sec. 63.11(a) and (b)..........  Yes
Sec. 63.12(a) through (c)......  Yes
Sec. 63.13(a) through (c)......  Yes
Sec. 63.14(a) and (b)..........  Yes
Sec. 63.15(a) and (b)..........  Yes
------------------------------------------------------------------------


[64 FR 32648, June 17, 1999, as amended at 66 FR 34558, June 29, 2001]