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

- Table NN-2 to Subpart NN of Part 98—Default Factors for Calculation Methodology 2 of This Subpart

Fuel Unit Default CO2 emission factor
(MT CO2/Unit) 1		Natural GasMscf0.0544 PropaneBarrel0.241 Normal butaneBarrel0.281 EthaneBarrel0.170 IsobutaneBarrel0.270 Pentanes plusBarrel0.324

1 Conditions for emission value presented in MT CO2/bbl are 60 °F and saturation pressure.

[78 FR 71977, Nov. 29, 2013, as amended at 79 FR 3508, Jan. 22, 2014; 81 FR 89270, Dec. 9, 2016]

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

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