Heavy-duty Vehicle and Engine Greenhouse Gas Emission Regulations — 29
Standards 29 (1) Subject to paragraph 25(d), every heavy-duty engine that is a compression-ignition engine of the 2014 model year or a subsequent model year and every heavy-duty engine that is a spark-ignition engine of the 2016 model year or a subsequent model year must, for the duration of their useful life, have N 2 O and CH 4 emission values that do not exceed 0.10 g/BHP-hr. Values (2) The N 2 O and CH 4 emission values for the engines referred to in subsection (1) correspond to the emission values of the tested engine configuration referred to in section 235(a) of Title 40, chapter I, subchapter U, part 1036, subpart C, of the CFR, for the engine family, measured in accordance with the transient duty cycle, taking into account sections 108(d) to (f) and 150(g) of subpart B, sections 235(b) and 241(c) and (d) of subpart C and subparts E and F of part 1036, Title 40, chapter I, subchapter U, of the CFR. Engine configuration (3) For the purposes of subsection (2), the tested engine configuration for the model year in question is determined using the engine sales in Canada if none of the engines of the engine family are sold in the United States. Fleet calculation (4) A company that manufactures or imports engines referred to in subsection (1) whose N 2 O emission value or CH 4 emission value exceeds the emission standard set out in that subsection must group those engines of a given model year into fleets in accordance with section 18 and must calculate the N 2 O or CH 4 emission deficit, as the case may be, for each of those fleets, expressed in megagrams of CO 2 , using the formula (A – B) × C × D × E × F 1 000 000 where A is 0.10 g/BHP-hr; B is the N 2 O or CH 4 family emission limit for the fleet, as the case may be, expressed in g/BHP-hr; C is the number of engines in the fleet; D is the transient cycle conversion factor calculated in accordance with the applicable variable “CF” in section 705(b) of Title 40, chapter I, subchapter U, part 1036, subpart H, of the CFR, except that a reference to “production volumes” in that section must be read as a reference to “number of engines of that engine family that a company imports or manufactures in Canada for the purpose of sale in Canada to the first retail purchaser”; E is the engine’s useful life, expressed in miles; and F is the global warming potential and is equal to the following number of CO 2 emission credits, expressed in megagrams of CO 2 , needed to offset a deficit of N 2 O or CH 4 : (a) for each megagram of N 2 O, 298; and (b) for each megagram of CH 4 , (i) for the 2020 model year and earlier model years, 25, and (ii) for the 2021 model year and subsequent model years, 34. Separate calculation (4.1) For the purposes of subsection (4), if both the N 2 O emission value and the CH 4 emission value exceed 0.10 g/BHP-hr, the N 2 O and CH 4 emission deficits must be calculated separately. Family emission limit (5) For the purposes of subsection (4), every heavy-duty engine within a fleet must conform to the N 2 O or CH 4 family emission limit for the fleet. Offsetting fleet emission deficit (6) The deficit calculated under subsection (4) must be offset by using the CO 2 emission credits obtained in accordance with sections 34 to 47 for the averaging set in which the fleet is included. No credits (7) For greater certainty, and subject to subsection (8), the company must not obtain CO 2 emission credits with respect to N 2 O and CH 4 emissions for the purpose of participation in the CO 2 emission credit system set out in sections 34 to 47 . Credits for low N 2 O emissions (8) If a company’s heavy-duty engines from a fleet of the 2014, 2015 or 2016 model year conform to an N 2 O family emission limit that is less than 0.04 g/BHP-hr, the company may obtain CO 2 emission credits for the purpose of participation in the CO 2 emission credit system set out in sections 34 to 47. The credits must be calculated using the following formula, for each fleet, and be expressed in meg