{"data":{"id":"us/40-cfr-table-c-2-to-subpart-c-of-part-98","jurisdiction":"us","citation":"40 CFR Table C-2 to Subpart C of Part 98","heading":"Table C-2 to Subpart C of Part 98—Default CH4 and N2O Emission Factors for Various Types of Fuel","body":"Fuel type Default CH4 emission factor (kg CH4/mmBtu) Default N2 O emission factor (kg N2 O/mmBtu)\nCoal and Coke (All fuel types in Table C-1) 1.1 × 10−02 1.6 × 10−03\nNatural Gas1 1.0 × 10−03 1.0 × 10−04\nPetroleum Products (All fuel types in Table C-1) 3.0 × 10−03 6.0 × 10−04\nFuel Gas 3.0 × 10−03 6.0 × 10−04\nOther Fuels—Solid 3.2 × 10−02 4.2 × 10−03\nBlast Furnace Gas 2.2 × 10−05 1.0 × 10−04\nCoke Oven Gas 4.8 × 10−04 1.0 × 10−04\nBiomass Fuels—Solid (All fuel types in Table C-1, except wood and wood residuals) 3.2 × 10−02 4.2 × 10−03\nWood and wood residuals 7.2 × 10−03 3.6 × 10−03\nBiomass Fuels—Gaseous (All fuel types in Table C-1) 3.2 × 10−03 6.3 × 10−04\nBiomass Fuels—Liquid (All fuel types in Table C-1) 1.1 × 10−03 1.1 × 10−04\nNote: Those employing this table are assumed to fall under the IPCC definitions of the “Energy Industry” or “Manufacturing Industries and Construction”. In all fuels except for coal the values for these two categories are identical. For coal combustion, those who fall within the IPCC “Energy Industry” category may employ a value of 1g of CH4/mmBtu.\n1 Reporters subject to subpart W of this part may only use the default CH4 emission factor for natural gas-fired combustion units that are not reciprocating internal combustion engines or gas turbines. For natural gas-fired reciprocating internal combustion engines or gas turbines, at facilities subject to subpart W of this part, reporters must use a CH4 emission factor determined in accordance with § 98.233(z)(4).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 98—MANDATORY GREENHOUSE GAS REPORTING","Subpart C—General Stationary Fuel Combustion Sources"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"bc0fa7466b3badbd4a7188184e6cffd393c602a1d8bbbda6e818d996959ee7e6","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-c-1-to-subpart-c-of-part-98","next":"us/40-cfr-98.40"},"notice":"GroundRules: Original legal text. Not legal advice."}