Q692. What is the GWP for methane that is used for this rule?

A692. Please refer to Table A-1 of Part 98 for the latest GWP values. Table A-1, as revised on November 29, 2013 (78 FR 71904), lists the GWP for methane as 25. This updated GWP should be used to calculate the CO2e emissions of methane for reporting year 2013 onwards. Facilities are not required to recalculate emissions in reports submitted for reporting years 2010, 2011, and 2012 that were calculated using the old GWP for methane of 21.

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Source: Alexis McKitterick, 9/26/2012; Revised by C. Hight, 1/23/2014.

Approval / Publishing History: Version 2

Expiration: none

Relevant Subparts: Subpart FF
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