GroundRules
40 CFR Table NN-1 to Subpart NN of Part 98: Table NN-1 to Subpart NN of Part 98—Default Factors for Calculation Methodology 1 of This Subpart
Where this section sits in the code
- 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
Fuel Default higher heating value 1 Default CO2 emission factor (kg CO2/MMBtu)
Natural Gas 1.026 MMBtu/Mscf 53.06
Propane 3.84 MMBtu/bbl 62.87
Normal butane 4.34 MMBtu/bbl 64.77
Ethane 2.85 MMBtu/bbl 59.60
Isobutane 4.16 MMBtu/bbl 64.94
Pentanes plus 4.62 MMBtu/bbl 70.02
1 Conditions for higher heating values presented in MMBtu/bbl are 60 °F and saturation pressure.
Collected 2026-08-27T02:26:04Z. Source file · JSON