{"data":{"id":"us/40-cfr-table-nn-2-to-subpart-nn-of-part-98","jurisdiction":"us","citation":"40 CFR Table NN-2 to Subpart NN of Part 98","heading":"Table NN-2 to Subpart NN of Part 98—Default Factors for Calculation Methodology 2 of This Subpart","body":"Fuel Unit Default CO2 emission factor (MT CO2/Unit) 1\nNatural Gas Mscf 0.0544\nPropane Barrel 0.241\nNormal butane Barrel 0.281\nEthane Barrel 0.170\nIsobutane Barrel 0.270\nPentanes plus Barrel 0.324\n1 Conditions for emission value presented in MT CO2/bbl are 60 °F and saturation pressure.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 98—MANDATORY GREENHOUSE GAS REPORTING","Subpart NN—Suppliers of Natural Gas and Natural Gas Liquids"],"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":"6c302322a2e3311bcd352b594dc4ce3198bee468798beb6f61e9f849e18cd8d1","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-nn-1-to-subpart-nn-of-part-98","next":"us/40-cfr-98.410"},"notice":"GroundRules: Original legal text. Not legal advice."}