1. Regulations
  2. title 40
  3. chapter I-i22
  4. part 98
  5. subpart W
  6. appendix-i 6

- Table W-7 to Subpart W of Part 98—Default Methane Emission Factors for Internal Combustion Equipment

Internal combustion
equipment type 		Emission
factor
(kg CH4/mmBtu) 		Reciprocating Engine, 2-stroke lean-burn0.658 Reciprocating Engine, 4-stroke lean-burn0.522 Reciprocating Engine, 4-stroke rich-burn0.045 Gas Turbine0.004
[89 FR 42327, May 14, 2024]

AUTHORITY: 42 U.S.C. 7401-7671q.

SOURCE: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.