Align vehicle and engine rules with U.S.

Summary#

These final amendments update several vehicle and engine emission rules to keep Canada aligned with recent technical changes in U.S. rules. They mainly change definitions and some testing, labelling and certification details. The amendments came into force on October 3, 2022.

What it does#

Makes technical changes across multiple Canadian regulations to match U.S. updates and fix a few wording gaps. The main changes include:

• Updates the following regulations to maintain alignment with U.S. requirements:
  • On-Road Vehicle and Engine Emission Regulations
  • Marine Spark-Ignition Engine, Vessel and Off-road Recreational Vehicle Emission Regulations
  • Heavy-duty Vehicle and Engine Greenhouse Gas Emission Regulations
  • Off-road Compression-Ignition (Mobile and Stationary) and Large Spark-Ignition Engine Emission Regulations
• Changes how some vehicles are defined so classifications match U.S. practice:
  • A “heavy‑duty vehicle” is tied to gross vehicle weight rating only (more than 3 856 kg (8,500 pounds)), removing two other size/weight criteria.
  • The definition of “light‑duty truck” is adjusted so it is not accidentally treated as heavy duty.
  • The “heavy‑duty incomplete vehicle” definition keeps its separate criteria (curb weight and frontal area) so manufacturers can choose the right classification.
• Updates for low- and zero‑emission vehicles and engines:
  • Adds or revises definitions for things like electric vehicles and fuel cell vehicle.
  • Treats hydrogen fuel cell vehicles the same as battery electric vehicles for CO2 accounting (zero grams of CO2 per short ton‑mile).
  • Allows companies to use engine “subfamilies” for CO2 compliance, matching U.S. certification flexibility.
• Gives manufacturers limited flexibility on vehicle model year designation for certain vocational vehicles and tractors (options to use the calendar year before or after assembly under specified conditions).
• Fixes references to sections of the U.S. Code of Federal Regulations (CFR) and updates labelling and maintenance instruction rules for some large spark‑ignition engines that follow alternative (compression‑ignition) standards.

Who's affected#

• Companies that make or import new vehicles and engines for sale in Canada.
• Vehicle and engine certification bodies and testing labs that work with emission standards.
• Dealers or fleet owners could see classification or paperwork differences when importing from the U.S. if those imports are affected by the definitions.
• The government consulted industry groups and one Indigenous group; the changes are described as technical and not expected to affect land use or communities.

Why it matters#

• It avoids a mismatch between Canadian and U.S. rules that could create extra paperwork, testing or delays for vehicles and engines sold across the Canada–U.S. market.
• The changes do not make emission standards stricter or weaker. They are meant to reduce administrative burden and keep trade and certification processes smooth.
• For buyers and fleets, the practical effect is likely limited. The changes mostly matter to manufacturers, importers and testers who must certify and label vehicles and engines.