Heavy-duty Vehicle and Engine Greenhouse Gas Emission Regulations

Marginal note:Alternative emission standard — 2014 to 2016 model years

• 31 (1) Heavy-duty engines that are compression-ignition engines of the 2014 to 2016 model years may conform to the CO₂ emission standard referred to in section 620 of Title 40, chapter I, subchapter U, part 1036, subpart G, of the CFR instead of the standard set out in paragraph 30(1)(c) if there are no remaining credits that can be used under sections 42 to 46 for the averaging set of those engines for the model years in question.

• Marginal note:Alternative emission standard — 2013 to 2016 model years

  (2) Heavy-duty engines that are compression-ignition engines of the 2013 to 2016 model years may conform to the CO₂ emission standard referred to in section 150(e) of Title 40, chapter I, subchapter U, part 1036, subpart B, of the CFR instead of the standard set out in paragraph 30(1)(c) or in subsection (1).

• Marginal note:No early action credits

  (3) The engines referred to in subsection (2) are not eligible for early action credits in accordance with section 47.

• Marginal note:Election to comply with subsection (2)

  (4) A company that elects to conform to the alternative CO₂ emission standard referred to in subsection (2) must continue to comply with that subsection for the other model years referred to in that subsection.

• Marginal note:Alternative emission standard — 2024 to 2026 model years

  (5) For the 2024 to 2026 model years, a company may elect to have its medium heavy-duty engines or heavy heavy-duty engines conform to the applicable alternative CO₂ emission standard referred to in section 150(p)(2) of Title 40, chapter I, subchapter U, part 1036, subpart B, of the CFR instead of the applicable standard set out in paragraph 30(1)(d).