On-Road Vehicle and Engine Emission Regulations

15 (1) Subject to subsection (2) and sections 19 and 19.1, a diesel heavy-duty vehicle of a specific model year, other than a medium-duty passenger vehicle, shall

• (a) be equipped with a heavy-duty engine that meets the requirements of these Regulations; and

• (b) conform to the evaporative emission and refueling emission standards applicable to diesel heavy-duty vehicles of the model year in question set out in section 1813 of Title 40, chapter I, subchapter C, part 86, subpart S, of the CFR.

(2) A vehicle referred to in subsection (1) that has a GVWR of 6 350 kg (14,000 lb) or less may conform to the standards applicable to vehicles of the model year in question referred to in section 1863 of Title 40, chapter I, subchapter C, part 86, subpart S, of the CFR instead of the standards described in subsection (1).