Off-Road Small Spark-Ignition Engine Emission Regulations

12.5 (1) Subject to subsection (2), the following standards set out in subpart B of CFR 1054 apply to engines of the 2019 and later model years:

• (a) for engines that are designed to be used in a non-handheld machine, the applicable exhaust emission standards for HC + NO_x and CO set out in paragraphs 105(a) and (c) of subpart B of CFR 1054 that are applicable to engines of the same engine class, as described in section 801 of subpart I of CFR 1054, and for the useful life of an engine set out in paragraph 105(d) of subpart B of CFR 1054;

• (b) for engines that are designed to be used in a handheld machine other than the engines referred to in paragraph (c), the applicable exhaust emission standards for HC + NO_x and CO set out in paragraphs 103(a) and (c) of subpart B of CFR 1054 that are applicable to engines of the same engine class, as described in section 801 of subpart I of CFR 1054, and for the useful life of an engine set out in paragraph 103(d) of subpart B of CFR 1054; and

• (c) for engines with a total engine displacement greater than 80 cm³ that are designed to be used in a handheld machine but are used in a non-handheld machine, the standards set out in paragraph (a).

(2) In the case of the engines referred to in paragraphs (1)(a) and (b), if the engines are tested with a fuel that meets the standards of the California Air Resources Board for Phase 3 test fuel found in the California Code of Regulations, Title 13, Division 3, Chapter 5, Article 1, Subarticle 2, Section 2262, the company may choose to apply the CO exhaust emission standards set out in paragraph 145(n)(2) of subpart B of CFR 1054.

(3) In the case of a two-stroke engine that is designed to be used in a snowblower, the company may choose to apply to that engine the standards referred to in paragraph (1)(b) applicable to an engine of the same total engine displacement instead of those referred to in paragraph (1)(a).