This document was developed for the Proposed Mandatory GHG Reporting Rule. For
the final document, please visit the final Mandatory Reporting of Greenhouse
Gases Rule.
Fluorinated Greenhouse Gas Production
United Slates
Proposed Rule: Mandatory Reporting of Greenhouse Gases Environmental Protection
Under the proposed Mandatory Reporting of Greenhouse Gases (GHGs) rule, owners or
operators of facilities that contain fluorinated GHG production processes (as defined below) and
that emit 25,000 metric tons of GHGs per year or more (expressed as carbon dioxide equivalents)
from stationary combustion, miscellaneous use of carbonates, and other source categories (see
information sheet on General Provisions) would report emissions from all source categories
located at the facility for which emission calculation methods are defined in the rule. Owners or
operators would collect emission data, calculate GHG emissions, and follow the specified
procedures for quality assurance, missing data, recordkeeping, and reporting.
Producers of fluorinated GHGs should also review the requirements of 40 CFRpart 98, subpart OO
(Suppliers of Industrial Greenhouse Gases) to determine if they would also report emissions under 40 CFR
part 98, subpart OO.
How Is This Source Category Defined?
Under the proposal, the fluorinated GHG production source category consists of facilities that produce
fluorinated GHGs (F-GHGs). The reuse or recycling of F-GHGs and the generation of HFC-23 from the
production of HCFC-22 are excluded from this source category. Also see 40 CFR part 98, subpart O
(HCFC-22 Production and HFC-23 Destruction).
What GHGs Would Be Reported?
The proposal calls for F-GHG production facilities to report F-GHG emissions from each F-GHG
production process.
In addition, each facility would report GHG emissions for other source categories for which calculation
methods are provided in the rule. For example, facilities would report carbon dioxide (CO2), nitrous oxide
(N2O), and methane (CFLO emissions from each stationary combustion unit on site by following the
requirements of 40 CFRpart 98, subpart C (General Stationary Fuel Combustion Sources). Please refer to
the relevant information sheet for a summary of the proposal for calculating and reporting emissions from
any other source categories at the facility.
How Would GHG Emissions Be Calculated?
Under the proposal, in addition to the information required by 40 CFR 98.3(c), for each F-GHG production
process, the emissions of each F-GHG product and F-GHG byproduct would be calculated using the
following mass balance calculations.
• For the F-GHG product, emissions would be calculated using daily measurements of the following:
o Reactants input to the process
o F-GHG product produced
o Reactants removed from the process (such as those sent to a control device)
March 2009 1 EPA-430-F-09-032
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This document was developed for the Proposed Mandatory GHG Reporting Rule. For
the final document, please visit the final Mandatory Reporting of Greenhouse
Gases Rule.
o Byproducts produced (if any)
o Wastes removed from the production process and destroyed (if any)
• For F-GHG byproducts, emissions would be calculated using daily measurements of the following:
o Mass of byproduct produced
o F-GHG byproducts captured (if any)
o F-GHG byproduct in wastes destroyed (if any)
In general, daily measurements used in the mass balances would be made using flow meters, weigh scales,
or a combination of volumetric and density measurements. If product and byproduct streams contain more
than trace concentrations of other materials, the concentrations would be measured using methods such as
gas chromatography.
For the destruction efficiency, the owner or operator would initially use the destruction efficiency
determined during a previous performance test or, if no previous performance test has been completed, the
destruction efficiency provided by the manufacturer of the destruction device. Each year, the owner or
operator would be required to measure the mass flow and fluorinated GHG concentration at the outlet to the
destruction device to confirm that emissions from the destruction device were as low as expected based on
the initially determined destruction efficiency of the device.
What Information Would Be Reported?
In addition to the information required by the General Provisions at 40 CFR 98.3(c), the proposal calls for
the following information to be reported for each F-GHG production process:
• Mass of each F-GHG produced.
• Mass of each reactant input to the process.
• Mass of each reactant permanently removed from the production process.
• Mass of each F-GHG product removed from the production process and destroyed.
• Mass of each F-GHG byproduct generated.
• Mass of each F-GHG byproduct destroyed.
• Mass of each F-GHG byproduct captured and sent off site for destruction.
• Mass of each F-GHG byproduct captured for other purposes.
• Mass of each fluorinated GHG emitted.
• Missing data periods, including reporting the reasons for the missing data and the method used to
estimate values for missing data.
F-GHG production facilities that destroy F-GHGs would have to submit:
• An initial report of the destruction efficiency, the methods used to determine the destruction
efficiency, the method used to record the amount of F-GHG destroyed, the identity of the F-GHG
used during the performance test, and a list of any state and federal regulations that apply to the
destruction process. A revised report would have to be submitted if any changes are made the
destruction efficiency or the F-GHG measurement methods used.
• The results of the annual fluorinated GHG concentration and flow measurements at the outlet of the
destruction device.
For More Information
March 2009 2 EPA-430-F-09-032
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This document was developed for the Proposed Mandatory GHG Reporting Rule. For
the final document, please visit the final Mandatory Reporting of Greenhouse
Gases Rule.
This series of information sheets is intended to assist reporting facilities/owners in understanding key
provisions of the proposed rule. However, these information sheets are not intended to be a substitution for
the rule. Visit EPA's Web site (www.epa.gov/climatechange/emissions/ghgrulemaking.html) for more
information, including the proposed preamble and rule and additional information sheets on specific
industries, or go to to access the rulemaking docket (EPA-HQ OAR-2008-0508).
For questions that cannot be answered through the Web site or docket, call 1-877-GHG-l 188.
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