40 CFR Table MM-1 to Subpart MM of Part 98
Default Factors for Petroleum Products and Natural Gas Liquids
June 9, 2020
CFR
Open Table
Products Column A: density
(metric tons/bbl)
Column B:
carbon share
(% of mass)
Column C:
emission factor
(metric tons CO2/bbl)
Finished Motor Gasoline
Conventional—Summer
Regular 0.1181 86.66 0.3753
Midgrade 0.1183 86.63 0.3758
Premium 0.1185 86.61 0.3763
Conventional—Winter
Regular 0.1155 86.50 0.3663
Midgrade 0.1161 86.55 0.3684
Premium 0.1167 86.59 0.3705
Reformulated—Summer
Regular 0.1167 86.13 0.3686
Midgrade 0.1165 86.07 0.3677
Premium 0.1164 86.00 0.3670
Reformulated—Winter
Regular 0.1165 86.05 0.3676
Midgrade 0.1165 86.06 0.3676
Premium 0.1166 86.06 0.3679
Gasoline—Other 0.1185 86.61 0.3763
Blendstocks
CBOB—Summer
Regular 0.1181 86.66 0.3753
Midgrade 0.1183 86.63 0.3758
Premium 0.1185 86.61 0.3763
CBOB—Winter
Regular 0.1155 86.50 0.3663
Midgrade 0.1161 86.55 0.3684
Premium 0.1167 86.59 0.3705
RBOB—Summer
Regular 0.1167 86.13 0.3686
Midgrade 0.1165 86.07 0.3677
Premium 0.1164 86.00 0.3670
RBOB—Winter
Regular 0.1165 86.05 0.3676
Midgrade 0.1165 86.06 0.3676
Premium 0.1166 86.06 0.3679
Blendstocks—Other 0.1185 86.61 0.3763
Oxygenates
Methanol 0.1268 37.48 0.1743
GTBA 0.1257 64.82 0.2988
MTBE 0.1181 68.13 0.2950
ETBE 0.1182 70.53 0.3057
TAME 0.1229 70.53 0.3178
DIPE 0.1156 70.53 0.2990
Distillate Fuel Oil
Distillate No. 1
Ultra Low Sulfur 0.1346 86.40 0.4264
Low Sulfur 0.1346 86.40 0.4264
High Sulfur 0.1346 86.40 0.4264
Distillate No. 2
Ultra Low Sulfur 0.1342 87.30 0.4296
Low Sulfur 0.1342 87.30 0.4296
High Sulfur 0.1342 87.30 0.4296
Distillate Fuel Oil No. 4 0.1452 86.47 0.4604
Residual Fuel Oil No. 5 (Navy Special) 0.1365 85.67 0.4288
Residual Fuel Oil No. 6 (a.k.a. Bunker C) 0.1528 84.67 0.4744
Kerosene-Type Jet Fuel 0.1294 86.30 0.4095
Kerosene 0.1346 86.40 0.4264
Diesel—Other 0.1452 86.47 0.4604
Petrochemical Feedstocks
Naphthas (<401 °F) 0.1158 84.11 0.3571
Other Oils (>401 °F) 0.1390 87.30 0.4450
Unfinished Oils
Heavy Gas Oils 0.1476 85.80 0.4643
Residuum 0.1622 85.70 0.5097
Other Petroleum Products and Natural Gas Liquids
Aviation Gasoline 0.1120 85.00 0.3490
Special Naphthas 0.1222 84.76 0.3798
Lubricants 0.1428 85.80 0.4492
Waxes 0.1285 85.30 0.4019
Petroleum Coke 0.1818 92.28 0.6151
Asphalt and Road Oil 0.1634 83.47 0.5001
Still Gas 0.1405 77.70 0.4003
Ethane3 0.0579 79.89 0.170
Ethylene4 0.0492 85.63 0.154
Propane3 0.0806 81.71 0.241
Propylene3 0.0827 85.63 0.260
Butane3 0.0928 82.66 0.281
Butylene3 0.0972 85.63 0.305
Isobutane3 0.0892 82.66 0.270
Isobutylene3 0.0949 85.63 0.298
Isobutylene 0.0936 85.63 0.2939
Pentanes Plus 0.1055 83.63 0.3235
Miscellaneous Products 0.1380 85.49 0.4326

1In the case of products blended with some portion of biomass-based fuel, the carbon share in Table MM-1 of this subpart represents only the petroleum-based components.

2Products that are derived entirely from biomass should not be reported, but products that were derived from both biomass and a petroleum product (i.e., co-processed) should be reported as the petroleum product that it most closely represents.

3The density and emission factors for components of LPG determined at 60 degrees Fahrenheit and saturation pressure (LPGs other than ethylene).

4The density and emission factor for ethylene determined at 41 degrees Fahrenheit and saturation pressure.

[74 FR 56374, Oct. 30, 2009, as amended at 78 FR 71975, Nov. 29, 2013]


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