California Code of Regulations › Title 17 - Public Health › Division 3 - Air Resources › Chapter 1 - Air Resources Board › Subchapter 10 - Climate Change › Article 2 - Mandatory Greenhouse Gas Emissions Reporting › Subarticle 2 - Requirements for the Mandatory Reporting of Greenhouse Gas Emissions from Specific Types of Facilities, Suppliers, and Entities › Section 95115 - Stationary Fuel Combustion Sources

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The operator of a facility who is required to report
						  under section
						  95101 of this article, and who is
						  not eligible for abbreviated reporting under section
						  95103(a), must
						  comply with Subpart C of 40 CFR Part 98 (§§
												98.30 to
						  98.38) in reporting stationary
						  fuel combustion emissions and related data to ARB, except as otherwise provided
						  in this section.
(a)
						CO2
from Steam Producing Units
. The
						operator of a steam producing unit combusting municipal solid waste or solid
						biomass fuels may use Equation C-2c of
						40 CFR §
													98.33(a)(2)(B)(iii), unless
						required to use Tier 3 or 4 by 40 CFR Part 98 or Part 75. Operators of steam
						producing units combusting fossil-based solid fuels must select applicable Tier
						3 or Tier 4 methods.
(b)
CEMS
CO2
Monitoring
.
						Notwithstanding the allowed use of oxygen concentration monitors in
						40 CFR §
													98.33(a)(4)(iv), an operator
						installing a continuous emissions monitoring system that includes a stack gas
						volumetric flow rate monitor after January 1, 2012, and who reports
						CO2 emissions using this system, must install and use a
						CO2 monitor. An operator without a
						CO2 monitor who uses a CEMS and
						O2 concentrations to calculate and report a unit's
						CO2 emissions, and who conducts a Relative Accuracy Test
						Audit (RATA) for the unit, must at least annually include in the RATA the
						direct monitoring of CO2 concentration and flow, and the
						calculation of CO2 mass per hour. The operator must
						retain these results pursuant to the recordkeeping requirements of section
						95105 and make them available to
						ARB upon request. The requirements of this paragraph do not apply to facilities
						for which pipeline natural gas is the only fuel consumed.
(c)
Choice of Tier for
						Calculating
CO2
Emissions
.
						Notwithstanding the provisions of
						40 CFR §
													98.33(b), the operator's
						selection of a method for calculation of CO2 emissions
						from combustion sources is subject to the following limitations by fuel type
						and unit size. The operator is permitted to select a higher tier than that
						required for the fuel type or unit size as specified below.
(1) The operator may select the Tier 1 or
						Tier 2 calculation method specified in
						40 CFR §
														98.33(a) for any fuel listed
						in Table 2-3 of this section that is combusted in a unit with a maximum rated
						heat input capacity of 250 MMBtu/hr or less, subject to the limitation at
						40 CFR §
														98.33(b)(1)(iv), or for
						biomass-derived fuels listed in Table C-1 of 40 CFR Part 98 when these
						emissions are not subject to a compliance obligation under the cap-and-trade
						regulation, except as limited by section
						95115(e).
(2) The operator may select the Tier 2
						calculation method specified in
						40 CFR §
														98.33(a)(2) for natural gas
						when it is pipeline quality as defined in section
						95102 of this article, and for
						distillate fuels listed in Table 2-3 of this section. Tier 1 may be selected
						when the fuel supplier is providing pipeline quality natural gas measured in
						units of therms or million Btu. Equation C-2c of
						40 CFR §
														98.33(a) may be selected for
						the units specified in paragraph (a) of this section.
(3) The operator may select any calculation
						method specified in 40 CFR
						§
														98.33(a) when
						calculating emissions that are shown to be de minimis under section
						95103(i) of this
						article, or for a fuel providing less than 10 percent of the annual heat input
						to a unit with a maximum rated heat input capacity of 250 MMBtu/hr or less,
						unless not permitted under 40 CFR §
														98.33(b).
(4) The operator must use either the Tier 3
						or the Tier 4 calculation method specified under
						40 CFR §
														98.33(a)(3)-(4) for any
						other fuel, including non-pipeline quality natural gas and fuel with emissions
						identified as non-exempt biomass-derived CO2, subject to
						the limitations of 40 CFR
						§
														98.33(b)(4)-(5)
						requiring use of the Tier 4 method. The operator using Tier 3 must determine
						annual average carbon content with weighted fuel use values, as required by
						Equation C-2b of 40 CFR
						§
														98.33. When fuel mass or volume is
						measured by lot, the term "n" in Equation C-2b is substituted as the number of
						lots received in the year.