#42026X1044UN Regulation No. 179 on laboratory measurement of brake emissions from light-duty vehicles
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This regulation creates a common approval framework for measuring brake particle emissions from light-duty vehicles in laboratory tests. It applies mainly to M1 passenger cars and N1 light commercial vehicles that use friction braking, with a possible extension to certain N2 vehicles between 3.5 and 5 tonnes derived from N1 vehicle types. Vehicle manufacturers, brake system suppliers, technical services, and type approval authorities will need to use the specified test procedures, documentation, approval markings, conformity checks, and reporting formats. The practical effect is to bring brake emissions into vehicle approval processes, giving regulators a standard way to assess pollution from braking, not just exhaust emissions.
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Key Changes
- Introduces a type approval framework for laboratory measurement of brake emissions from light-duty vehicles.
- Applies to M1 and N1 vehicles using friction braking, with optional coverage for certain N2 vehicles derived from N1 types.
- Sets test procedures, documentation, approval marking, production conformity, and reporting requirements for brake emission approval.
Obligations
What this law requires
Manufacturers seeking approval for M1 or N1 vehicles using friction braking must apply the Regulation’s laboratory brake-emissions approval framework to those vehicle types.
Manufacturers requesting approval for eligible N2 vehicles between 3.5 and 5 tonnes maximum mass must ensure those vehicles originate from a type of vehicle of category N1.
Applicants for approval must submit the required information documentation for brake-emissions approval, including the prescribed reports listed in Annex 1 where applicable.
Technical services responsible for approval testing must conduct brake-emissions testing using the Regulation’s Brake Emissions Test Procedure, including the WLTP-Brake Cycle events specified in Annex 4.
Manufacturers and testing bodies must measure and calculate vehicle-specific friction braking share coefficients using the method specified in Annex 5 where such coefficients are required for approval documentation.