[Code of Federal Regulations]
[Title 40, Volume 15]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR65.83]

[Page 65-66]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 65_CONSOLIDATED FEDERAL AIR RULE--Table of Contents
 
                        Subpart E_Transfer Racks
 
Sec.  65.83  Performance requirements.

    (a) The owner or operator of the transfer rack shall comply with 
paragraph (a)(1), (2), (3), or (4) of this section.
    (1) 98 Percent or 20 parts per million by volume standard. Use a 
control device to reduce emissions of regulated material by 98 weight-
percent or to an exit concentration of 20 parts per million by volume, 
whichever is less stringent. For combustion devices, the emission 
reduction or concentration shall be calculated on a dry basis, corrected 
to 3 percent oxygen. The owner or operator shall meet the applicable 
requirements of Sec.  65.142(c). Compliance may be achieved by using any 
combination of control devices.
    (2) Flare. Reduce emissions of regulated material using a flare 
meeting the applicable requirements of Sec.  65.142(c).
    (3) Vapor balancing. Reduce emissions of regulated material using a 
vapor balancing system designed and operated to collect regulated 
material vapors displaced from tank trucks or railcars during loading; 
and to route the collected regulated material vapors to the storage 
vessel from which the liquid being loaded originated, or to another 
storage vessel connected to a common header, or to compress and route 
collected regulated material vapors to a process. Transfer racks for 
which the owner or operator is using a vapor balancing system are exempt 
from the closed vent system design requirements of Sec.  65.82(b) and 
(d), the halogenated vent stream control requirements of paragraph (b) 
of this section, the control device operation requirements of Sec.  
65.84(b), the monitoring requirements of Sec.  65.86, and the 
requirements of subpart G of this part.

[[Page 66]]

    (4) Route to a process or fuel gas system. Route emissions of 
regulated material to a process or fuel gas system. The owner or 
operator shall meet the applicable requirements of Sec.  65.142(c) and 
is exempt from the closed vent system design requirements of paragraphs 
Sec.  65.82(b) and (d), the halogenated vent stream control requirements 
of paragraph (b) of this section, the control device operation 
requirements of Sec.  65.84(b), and the monitoring requirements of Sec.  
65.86. If the emissions are routed to a process, the regulated material 
in the emissions shall predominantly meet one of, or a combination of, 
the ends specified in the following:
    (i) Recycled and/or consumed in the same manner as a material that 
fulfills the same function in that process;
    (ii) Transformed by chemical reaction into materials that are not 
regulated materials;
    (iii) Incorporated into a product; and/or
    (iv) Recovered.
    (b) Additional control requirements for halogenated vent streams. 
Halogenated vent streams from transfer racks that are combusted shall be 
controlled according to paragraph (b)(1) or (2) of this section. The 
owner or operator shall either designate the transfer rack vent stream 
as a halogenated vent stream or shall determine whether the vent stream 
is halogenated using the procedures specified in Sec.  65.85(c). If 
determined, the halogen concentration in the vent stream shall be 
recorded and reported in the Initial Compliance Status Report as 
specified in Sec.  65.160(d). If the owner or operator designates the 
vent stream as a halogenated vent stream, then this shall also be 
recorded and reported in the Initial Compliance Status Report.
    (1) Halogen reduction device following combustion. If a combustion 
device is used to comply with paragraph (a)(1) of this section for a 
halogenated vent stream, then the vent stream exiting the combustion 
device shall be ducted to a halogen reduction device including, but not 
limited to, a scrubber before it is discharged to the atmosphere, and 
the halogen reduction device shall meet the requirements of paragraph 
(b)(1)(i) or (ii) of this section, as applicable. The halogenated vent 
stream shall not be combusted using a flare.
    (i) Except as provided in paragraph (b)(1)(ii) of this section, the 
halogen reduction device shall reduce overall emissions of hydrogen 
halides and halogens by 99 percent or shall reduce the outlet mass 
emission rate of total hydrogen halides and halogens to 0.45 kilogram 
per hour (0.99 pound per hour) or less, whichever is less stringent. The 
owner or operator shall meet the applicable requirements of Sec.  
65.142(c).
    (ii) If a scrubber or other halogen reduction device was installed 
prior to December 31, 1992, the halogen reduction device shall reduce 
overall emissions of hydrogen halides and halogens by 95 percent or 
shall reduce the outlet mass of total hydrogen halides and halogens to 
less than 0.45 kilogram per hour (0.99 pound per hour), whichever is 
less stringent. The owner or operator shall meet the applicable 
requirements of Sec.  65.142(c).
    (2) Halogen reduction device prior to combustion. A halogen 
reduction device, such as a scrubber, or other technique may be used to 
make the vent stream nonhalogenated by reducing the vent stream halogen 
atom mass emission rate to less than 0.45 kilogram per hour (0.99 pound 
per hour) prior to any combustion control device used to comply with the 
requirements of paragraph (a)(1) or (2) of this section. The mass 
emission rate of halogen atoms contained in organic compounds prior to 
the combustor shall be determined according to the procedures in Sec.  
65.85(c). The owner or operator shall maintain the record specified in 
Sec.  65.160(d) and submit the report specified in Sec.  65.165(d).