Heavy-duty Vehicle and Engine Greenhouse Gas Emission Regulations — 27
CO 2 emission standards — 2014 to 2020 model years 27 (1) Subject to subsections (7) and (8) and section 28, for the 2014 to 2020 model years, every tractor and incomplete tractor of a class referred to in column 1 of the table to this subsection and possessing the characteristics referred to in column 2 must, for the duration of its useful life, have a CO 2 emission rate that does not exceed the CO 2 emission standard set out in column 3 or 4 for the model year in question. TABLE Column 1 Column 2 Column 3 Column 4 Item Class Characteristics CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2014 to 2016 Model Years CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2017 to 2020 Model Years 1 Class 7 Low-roof 107 104 2 Class 7 Mid-roof 119 115 3 Class 7 High-roof 124 120 4 Class 8 Low-roof with day cab 81 80 5 Class 8 Low-roof with sleeper cab 68 66 6 Class 8 Mid-roof with day cab 88 86 7 Class 8 Mid-roof with sleeper cab 76 73 8 Class 8 High-roof with day cab 92 89 9 Class 8 High-roof with sleeper cab 75 72 CO 2 emission standards — 2021 model year and subsequent model years (1.1) Subject to subsections (1.2), (7) and (8) and section 28, for the 2021 model year and subsequent model years, every tractor and incomplete tractor of a class referred to in column 1 of the table to one of the following paragraphs and possessing the characteristics referred to in column 2 must, for the duration of its useful life, have a CO 2 emission rate that does not exceed the CO 2 emission standard set out in column 3, 4 or 5 of that table for the model year in question: (a) in the case of a tractor or incomplete tractor that has a GCWR of less than 43 998 kg (97,000 pounds), TABLE Column 1 Column 2 Column 3 Column 4 Column 5 Item Class Characteristics CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2021 to 2023 Model Years CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2024 to 2026 Model Years CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2027 and Subsequent Model Years 1 Class 7 Low-roof 105.5 99.8 96.2 2 Class 7 Mid-roof 113.2 107.1 103.4 3 Class 7 High-roof 113.5 106.6 100.0 4 Class 8 Low-roof with day cab 80.5 76.2 73.4 5 Class 8 Low-roof with sleeper cab 72.3 68.0 64.1 6 Class 8 Mid-roof with day cab 85.4 80.9 78.0 7 Class 8 Mid-roof with sleeper cab 78.0 73.5 69.6 8 Class 8 High-roof with day cab 85.6 80.4 75.7 9 Class 8 High-roof with sleeper cab 75.7 70.7 64.3 (b) in the case of a tractor or incomplete tractor that has a GCWR of 43 998 kg (97,000 pounds) or more, but less than 54 431 kg (120,000 pounds), or TABLE Column 1 Column 2 Column 3 Column 4 Column 5 Item Class Characteristics CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2021 to 2023 Model Years CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2024 to 2026 Model Years CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2027 and Subsequent Model Years 1 Class 8 Low-roof with day cab 82.8 79.1 76.6 2 Class 8 Low-roof with sleeper cab 74.8 71.2 67.8 3 Class 8 Mid-roof with day cab 87.9 84.0 81.4 4 Class 8 Mid-roof with sleeper cab 80.8 76.9 73.6 5 Class 8 High-roof with day cab 88.2 83.5 79.0 6 Class 8 High-roof with sleeper cab 78.4 73.9 68.0 (c) in the case of a tractor or incomplete tractor that has a GCWR of 54 431 kg (120,000 pounds) or more, TABLE Column 1 Column 2 Column 3 Column 4 Column 5 Item Class Characteristics CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2021 to 2023 Model Years CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2024 to 2026 Model Years CO 2 Emission Standard (grams of CO 2 per short ton-mile) for 2027 and Subsequent Model Years 1 Class 8 Low-roof with day cab 53.5 50.8 48.9 2 Class 8 Low-roof with sleeper cab 47.1 44.5 42.4 3 Class 8 Mid-roof with day cab 55.6 52.8 50.8 4 Class 8 Mid-roof with sleeper cab 49.6 46.9 44.7 5 Class 8 High-roof with day cab 54.5 51.4 48.6 6 Class 8 High-roof with sleeper cab 47.1 44.2 41.0