[Code of Federal Regulations]
[Title 40, Volume 15]
[Revised as of July 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR65.66]

[Page 60-61]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 65_CONSOLIDATED FEDERAL AIR RULE--Table of Contents
 
                         Subpart D_Process Vents
 
Sec. 65.66  Recordkeeping provisions.

    (a) TRE index value records. The owner or operator shall maintain 
records of measurements, engineering assessments, and calculations 
performed to determine the TRE index value of the process vent according 
to the procedures of Sec. 65.64(h), including those records associated 
with halogen vent stream determination. Documentation of engineering 
assessments shall include all data, assumptions, and procedures used for 
the engineering assessments, as specified in Sec. 65.64(i). As 
specified in Sec. 65.67(a), the owner or operator shall include this 
information in the Initial Compliance Status Report.
    (b) Flow rate records. Each owner or operator who elects to 
demonstrate that a process vent is Group 2B based on a flow rate less 
than 0.011 standard cubic meter per minute (0.40 standard cubic foot per 
minute) shall record the flow rate as measured using the sampling site 
and flow rate determination procedures specified in Sec. 65.64(b) and 
(d)

[[Page 61]]

or determined through engineering assessment as specified in Sec. 
65.64(i). As specified in Sec. 65.67(a), the owner or operator shall 
include this information in the Initial Compliance Status Report.
    (c) Concentration records. Each owner or operator who elects to 
demonstrate that a process vent is Group 2B based on a concentration 
less than the applicable criteria in table 1 to this subpart shall 
record the organic HAP or TOC concentration as measurement using the 
sampling site and HAP or TOC concentration determination procedures 
specified in Sec. 65.64(b) and (c) or determined through engineering 
assessment as specified in Sec. 65.64(i). As specified in Sec. 
65.67(a), the owner or operator shall include this information in the 
Initial Compliance Status Report.
    (d) Process change records. The owner or operator shall keep up-to-
date, readily accessible records as specified in the following and shall 
report this information as specified in Sec. 65.67(b):
    (1) If the process vent is Group 2B on the basis of flow rate being 
less than 0.011 scmm (0.40 standard cubic foot), then the owner or 
operator shall keep records of any process changes as defined in Sec. 
65.63(f) that increase the process vent flow rate and any recalculation 
or measurement of the flow rate pursuant to Sec. 65.63(f).
    (2) If the process vent is Group 2B on the basis of organic HAP or 
TOC concentration being less than the applicable value in table 1 to 
this subpart, then the owner or operator shall keep records of any 
process changes as defined in Sec. 65.63(f) that increase the organic 
HAP or TOC concentration of the process vent and any recalculation or 
measurement of the concentration pursuant to Sec. 65.63(f).
    (3) If the process vent is Group 2A or Group 2B on the basis of the 
TRE index value being greater than 1.0, then the owner or operator shall 
keep records of any process changes as defined in Sec. 65.63(f) and any 
recalculation of the TRE index value pursuant to Sec. 65.63(f).
    (4) As a result of a process change, if a process vent that was 
Group 2B on any basis becomes a Group 2B process vent only on the basis 
of having a TRE greater than 4.0, then the owner or operator shall keep 
records of the TRE index value determination performed according to the 
sample site and TRE index value determination procedures of Sec. 
65.64(b)(1) and (h) or determined through engineering assessment as 
specified in Sec. 65.64(i).
    (e) Other Group 2A records. An owner or operator of a Group 2A 
process vent maintaining a TRE index value greater than 1.0 without a 
recovery device shall record the parameters monitored based on the 
approved plan as specified in Sec. 65.63(d).