Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
Appendix - Table MM-2 to Subpart MM of Part 98—Default Factors for Biomass-Based Fuels and Biomass
Biomass-based fuel and biomass Column A:
Density
(metric tons/bbl)
Column B: Carbon share
(% of mass)
Column C:
Emission factor
(metric tons CO2/bbl)
Ethanol (100%)0.126752.140.2422
Biodiesel (100%, methyl ester)0.139677.300.3957
Rendered Animal Fat0.133376.190.3724
Vegetable Oil0.146076.770.4110
source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.