[Code of Federal Regulations]
[Title 40, Volume 14]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR75.35]

[Page 273]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 75--CONTINUOUS EMISSION MONITORING--Table of Contents
 
             Subpart D--Missing Data Substitution Procedures
 
Sec. 75.35  Missing data procedures for CO2.

    (a) The owner or operator of a unit with a CO2 continuous 
emission monitoring system for determining CO2 mass emissions 
in accordance with Sec. 75.10 (or an O2 monitor that is used 
to determine CO2 concentration in accordance with appendix F 
to this part) shall substitute for missing CO2 pollutant 
concentration data using the procedures of paragraphs (b) and (d) of 
this section.
    (b) During the first 720 quality-assured monitor operating hours 
following initial certification at a particular unit or stack location 
(i.e., the date and time at which quality-assured data begins to be 
recorded by a CEMS at that location), or (when implementing these 
procedures for a previously certified CO2 monitoring system) 
during the 720 quality-assured monitor operating hours preceding 
implementation of the standard missing data procedures in paragraph (d) 
of this section, the owner or operator shall provide substitute 
CO2 pollutant concentration data or substitute CO2 
data for heat input determination, as applicable, according to the 
procedures in Sec. 75.31(b).
    (c) [Reserved]
    (d) Upon completion of 720 quality-assured monitor operating hours 
using the initial missing data procedures of Sec. 75.31(b), the owner or 
operator shall provide substitute data for CO2 concentration 
or substitute CO2 data for heat input determination, as 
applicable, in accordance with the procedures in Sec. 75.33(b) except 
that the term ``CO2 concentration'' shall apply rather than 
``SO2 concentration,'' the term ``CO2 pollutant 
concentration monitor'' or ``CO2 diluent monitor'' shall 
apply rather than ``SO2 pollutant concentration monitor,'' 
and the term ``maximum potential CO2 concentration, as 
defined in section 2.1.3.1 of appendix A to this part'' shall apply, 
rather than ``maximum potential SO2 concentration.''

[67 FR 40439, June 12, 2002]