Heavy-duty Vehicle and Engine Greenhouse Gas Emission Regulations

Marginal note:Calculation — Rankine-cycle engines

• 40 (1) In the case of heavy-duty engines that include a Rankine-cycle or other bottoming cycle exhaust energy recovery system, a company may obtain additional credits, expressed in megagrams of CO₂, using the following formula:

  (A × B × C × D) ÷ (1 000 000)

  where

  A

  is the benefit obtained from A to B testing, expressed in grams of CO₂ per BHP-hr, determined in accordance with subpart F of Title 40, chapter I, subchapter U, part 1037, of the CFR, or using an alternative procedure if,

  • (a) in the case of an engine that is covered by an EPA certificate, the alternative procedure has been approved by the EPA for that technology and the company provides the Minister with evidence of the EPA approval, or

  • (b) in the case of an engine that is not covered by an EPA certificate, the company provides the Minister with evidence demonstrating that the alternative procedure provides a more representative benefit than A to B testing for that technology;

  B

  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;

  C

  is the number of engines in the fleet; and

  D

  is the useful life for the engine, as follows:

  • (a) 110,000 miles for spark-ignition engines, and

  • (b) for compression-ignition engines,

    • (i) 110,000 miles for light heavy-duty engines,

    • (ii) 185,000 miles for medium heavy-duty engines, and

    • (iii) 435,000 miles for heavy heavy-duty engines.

• Marginal note:Credit multiplier

  (2) The additional credits calculated in subsection (1) may be multiplied by 1.5 if the company does not use the early action credit multiplier referred to in subsection 47(6) for the same engines.