1. EPA Proposed Mandatory Greenhouse Gas Reporting Rule

2. The purpose of the rule is to collect “comprehensive and accurate” data on GHG emissions that can be used to inform future policy decisions The purpose of the rule is to collect “comprehensive and accurate” data on GHG emissions that can be used to inform future policy decisions No direction on the development of emission reduction or control No direction on the development of emission reduction or control It is not meant to be a registry tracking individual projects or reductions It is not meant to be a registry tracking individual projects or reductions After it is published in the Federal Register, there will be a 60 day comment period (probably w/ additional 30 days) After it is published in the Federal Register, there will be a 60 day comment period (probably w/ additional 30 days) EPA wants to publish the final rule before the end of the year EPA wants to publish the final rule before the end of the year The proposed rule and preamble are extensive (1400+ pages) The proposed rule and preamble are extensive (1400+ pages) In addition In addition Technical Support Documents Technical Support Documents Regulatory Impact Statement Regulatory Impact Statement Overview of the Reporting Rule

3. Regulated Gases Mandatory reporting of GHGs would require reporting of annual emissions of: Mandatory reporting of GHGs would require reporting of annual emissions of: Carbon Dioxide (CO 2 ) Carbon Dioxide (CO 2 ) Methane (CH 4 ) Methane (CH 4 ) Nitrous Oxide (N 2 O) Nitrous Oxide (N 2 O) Sulfur Hexafluoride (SF 6 ) Sulfur Hexafluoride (SF 6 ) Hydrofluorocarbons (HFCs) Hydrofluorocarbons (HFCs) Perfluorochemicals (PFCs) Perfluorochemicals (PFCs) Other Fluorinated Gases (e.g. NF 3, HFEs) Other Fluorinated Gases (e.g. NF 3, HFEs)

4. Proposed Sectors and Sources

5. Schedule for Reporting Facilities and suppliers would begin collecting data on January 1, 2010 Facilities and suppliers would begin collecting data on January 1, 2010 First emissions report would be due on March 31, 2011 First emissions report would be due on March 31, 2011 New vehicles and engine manufacturers would start reporting w/ the 2011 model year New vehicles and engine manufacturers would start reporting w/ the 2011 model year Reports would be submitted annually Reports would be submitted annually

6. What Information Would be Reported? Total GHG emissions in MT of CO 2 E from all source and supply categories: Total GHG emissions in MT of CO 2 E from all source and supply categories: Gas Gas Breakdown emissions w/in each source category (e.g. unit or process level) Breakdown emissions w/in each source category (e.g. unit or process level) Activity data Activity data

7. How Would Reports be Submitted? Facilities would report directly to the EPA Facilities would report directly to the EPA Electronic reporting Electronic reporting Self-certification by Designated Representative Self-certification by Designated Representative

8. Stationary Combustion

9. Who Reports? Facilities w/ stationary fuel combustion sources that have emissions greater then 25,000 MT CO 2 E Facilities w/ stationary fuel combustion sources that have emissions greater then 25,000 MT CO 2 E In combination w/ other source categories process emissions In combination w/ other source categories process emissions CO 2, N 2 O and CH 4 would be reported CO 2, N 2 O and CH 4 would be reported *Table only includes facilities w/ stationary combustion equipment not covered in other subparts of the rule **CO2 emissions from biomass are not considered as part of the determination of the threshold level

10. CO 2 From Fuel Combustion Based on the fuel combusted and the size of the stationary equipment Based on the fuel combusted and the size of the stationary equipment Facilities w/ and aggregate maximum heat input capacity of less then 30 mmBtu/hr are automatically exempt from the proposed rule Facilities w/ and aggregate maximum heat input capacity of less then 30 mmBtu/hr are automatically exempt from the proposed rule Combustion units that are subject to the reporting requirements under the ARP would continue to measure CO 2 mass emissions (using the 40 CFR part 75 methods) and continue quarterly reporting of CO 2 emissions (cumulative short tons would be converted to MT) Combustion units that are subject to the reporting requirements under the ARP would continue to measure CO 2 mass emissions (using the 40 CFR part 75 methods) and continue quarterly reporting of CO 2 emissions (cumulative short tons would be converted to MT) 4-tiered approach 4-tiered approach Tier 4 –large stationary combustion units fired w/ solid fuels and have existing CEMS equipment Tier 4 –large stationary combustion units fired w/ solid fuels and have existing CEMS equipment Tier 3 –large stationary combustion units fired w/ liquids or gaseous fuels Tier 3 –large stationary combustion units fired w/ liquids or gaseous fuels Tiers 1 and 2 – simplified emissions calculations Tiers 1 and 2 – simplified emissions calculations

11. NO Does Unit Have Existing CEMS? YES NO 2 Do CEMS and Unit Meet Certain Conditions? 1 Tier 4: Use CEMS Similar to 40 CFR 75 YES Does Unit Burn Wood Biomass Fuels? Is Unit >250 MMBtu/hr Heat Input? Is Measured High Heating Value (HHV) Available? Tier 1 3 : Use Default HHV and CO 2 Emission Factor Tier 2 2 : Use Measured HHV and CO 2 Emission Factor Tier 3 3 : Measure Fuel Carbon Content Is a CO 2 Emission Factor for the Fuel Provided in Rule? Tier 3 3 : Measure Fuel Carbon Content Are Emission Factors and HHV for Fuel Provided in the Rule? NO YES NO YES NO YES General Stationary Fuel Combustion Requirements for CO 2 Proposed 40 CFR 98 Subpart C 1 Conditions for requiring CEMS: - >250 MMBtu/hr or >250 tons/day MWC. - Operates >1,000 hours/year. - Has Part 60 or Part 75 or state-certified gas monitor or flow rate monitor. - Meets QA/QC requirements as above. OR - <250 MMBtu/hr or <250 tons/day MWC. - Operates >1,000 hours/year. - Has Part 60 or Part 75 or state-certified certified gas monitor and flow rate monitor. - Meets QA/QC requirements as above. 2 MSW units that do not use CEMS would use Tier 2. 3 Reporters have the option of using any higher tier methodology. NO YES

12. CO 2 Emissions from Biomass Fuel Combustion Units that combust biomass fuels will have to report annual biogenic CO 2 emissions separately Units that combust biomass fuels will have to report annual biogenic CO 2 emissions separately This is consistent w/ IPCC and US GHG inventory framework This is consistent w/ IPCC and US GHG inventory framework Where Tier 4 is not required, reporters can use Tier 1 method for fuels in which default CO 2 emission factors and HHVs are provided Where Tier 4 is not required, reporters can use Tier 1 method for fuels in which default CO 2 emission factors and HHVs are provided If no default values are provided then reports have to use Tiers 2 or 3 If no default values are provided then reports have to use Tiers 2 or 3 For units required to use Tier 4, the rule has procedures to calculate the porting of CO 2 that is from fossil fuel vs. biogenic fuels For units required to use Tier 4, the rule has procedures to calculate the porting of CO 2 that is from fossil fuel vs. biogenic fuels For MSW, the rule has procedures to determine the portion of the CO 2 that is from biogenic fuel using the ASTM method For MSW, the rule has procedures to determine the portion of the CO 2 that is from biogenic fuel using the ASTM method

13. CH 4 and N 2 O Emissions Units subject to the ARP would calculate emissions from continuous measurements of fuel heat input and fuel specific emission factors Units subject to the ARP would calculate emissions from continuous measurements of fuel heat input and fuel specific emission factors Simplified emissions calculation methods Simplified emissions calculation methods Emissions would be estimated using the EPA- provided default factors and annual heat input Emissions would be estimated using the EPA- provided default factors and annual heat input

14. CO 2 Emissions from Sorbent Calculate CO 2 emissions from fluidized bed unit w/ sorbent injection controls or FDG using ratio of CO 2 released upon capture of acid gas Calculate CO 2 emissions from fluidized bed unit w/ sorbent injection controls or FDG using ratio of CO 2 released upon capture of acid gas

15. EPA Requests Comment on… Reporting of emissions from portable equipment or generating units designated as emergency generators in issued permits Reporting of emissions from portable equipment or generating units designated as emergency generators in issued permits Integration of fuel supplier requirements (e.g. fuel HHVs) w/ both the tier 1 and 2 calculation methodologies Integration of fuel supplier requirements (e.g. fuel HHVs) w/ both the tier 1 and 2 calculation methodologies Use of more technology-specific CH 4 and N 2 O emission factors that could be applied in unit-level calculations Use of more technology-specific CH 4 and N 2 O emission factors that could be applied in unit-level calculations Exemption for facilities that have an aggregate combined heat input capacity of less then 30 mmBtu/hr from stationary combustion units Exemption for facilities that have an aggregate combined heat input capacity of less then 30 mmBtu/hr from stationary combustion units