Table 1 of Paragraph (a) of § 1037.670 -Optional CO2 Standards for Tractors Above 120,000 Pounds GCWR
[g/ton-mile]a
Subcategory | Model years 2021-2023 | Model years 2024-2026 |
Heavy Class 8 Low-Roof Day Cab | 53.5 | 50.8 |
Heavy Class 8 Low-Roof Sleeper Cab | 47.1 | 44.5 |
Heavy Class 8 Mid-Roof Day Cab | 55.6 | 52.8 |
Heavy Class 8 Mid-Roof Sleeper Cab | 49.6 | 46.9 |
Heavy Class 8 High-Roof Day Cab | 54.5 | 51.4 |
Heavy Class 8 High-Roof Sleeper Cab | 47.1 | 44.2 |
a Note that these standards are not directly comparable to the standards for Heavy-Haul Tractors in § 1037.106 because GEM handles aerodynamic performance differently for the two sets of standards. |
40 C.F.R. §1037.670