Cookies help us deliver our services. By using our services, you agree to our use of cookies. Learn more

UN Regulation No. 90
Replacement Brake Linings, Discs, and Drums

Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers

UNECE R90, covering key replacement components for brakes, is closely tied to UNECE R13/R13-H and R78 governing brake systems for commercial/passenger vehicles and motorcycles, respectively. The drum-brake lining provisions apply specifically to medium and heavy vehicles and trailers.

While this rule addresses situations specific to replacement brake linings, these products may alternatively be approved through UNECE R13/13-H or R78. Consequently, products approved under the above rules do not require subsequent reapproval under UNECE R90 for use in vehicle maintenance.

However, such brake components that have not been approved under UNECE R13 or R78 and which are intended for vehicles approved under those rules must comply with UNECE R90.

Download the Regulation

Revisions and Amendments
Series of Amendments and Supplements

Application of the Regulation

Contracting Parties applying UN R90

Related News and Information

3 Feb 2015 3 Feb 2015 | June WP.29 amendments now binding Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be Fitted and/or be Used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these Prescriptions The 1958 Agreement regulates the functioning of the international system for the recognition of type approvals under UN Regulations. The Agreement specifies how regulations are to be established and how the system operates whereby an approval under a given regulation accorded by one country can be accepted by all other countries applying that regulation. The program to establish an international system for whole vehicles (as opposed to the current focus on individual vehicle components and systems) includes an important restructuring of the 1958 Agreement. Revision 3 of the 1958 Agreement enters into force on 14 September 2017. 1958 Agreement 1958 Agreement United Nations Agreement 1958 Agreement, Uniform Provisions Concerning the Approval of Vehicles with regard to the Protection of the Occupants of the Cab of a Commercial Vehicles Commercial Vehicle Cabs Commercial Vehicle Cab Occupant Protection UN Regulation No. 29 UN R29, Uniform Provisions Concerning the Approval of Restraining Devices for Child Occupants of Power-driven Vehicles ("Child Restraint System") Child Restraint Systems Child Restraint Systems UN Regulation No. 44 UN R44, Uniform provisions concerning the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines and positive ignition engines for use in vehicles Diesel/CNG/LNG Engine Emissions Diesel and CNG/LNG Engine Emissions UN Regulation No. 49 UN R49, Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions Vehicle Noise Vehicle Noise Emissions UN Regulation No. 51 UN R51, Uniform Provisions Concerning the Approval of Pneumatic Tyres for Commercial Vehicles and their Trailers CV Tires Commercial Vehicle Tyres UN Regulation No. 54 UN R54, Uniform Provisions Concerning the Approval of Pneumatic Tyres for Motor Cycles and Mopeds Motorcycle Tires Motorcycle and Moped Tires UN Regulation No. 75 UN R75, Uniform Provisions Concerning the Approval of Vehicles with regard to the Emission of Pollutants According to Engine Fuel Requirements Together with R49, Regulation 83 addresses vehicle emissions. R83 covers emissions from all light vehicles (M1/N1) regardless of engine type and from heavier vehicles only if equipped with a gasoline engine. Under certain circumstances, R83 or R49 can apply to light vehicle CNG/LPG engines as well as to medium passenger and commercial vehicles (M2/N2) equipped with diesel engines. R83 also contains provisions specific to hybrid variations of the vehicles under its purview. Motor Vehicle Emissions Motor Vehicle Emissions UN Regulation No. 83 UN R83, Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers

UNECE R90, covering key replacement components for brakes, is closely tied to UNECE R13/R13-H and R78 governing brake systems for commercial/passenger vehicles and motorcycles, respectively. The drum-brake lining provisions apply specifically to medium and heavy vehicles and trailers.

While this rule addresses situations specific to replacement brake linings, these products may alternatively be approved through UNECE R13/13-H or R78. Consequently, products approved under the above rules do not require subsequent reapproval under UNECE R90 for use in vehicle maintenance.

However, such brake components that have not been approved under UNECE R13 or R78 and which are intended for vehicles approved under those rules must comply with UNECE R90.

Replacement Brake Components Replacement Brake Linings, Discs, and Drums UN Regulation No. 90 UN R90, Uniform Provisions Concerning the Approval of Passenger Cars Powered by an Internal Combustion Engine Only, or Powered by a Hybrid Electric Power Train with Regard to the Measurement of the Emission of Carbon Dioxide and Fuel Consumption and/or the Measurement of Electric Energy Consumption and Electric Range, and of Categories M1 and N1 Vehicles Powered by an Electric Power Train Only with Regard to the Measurement of Electric Energy Consumption and Electric Range CO2 Emissions/Fuel Consumption Carbon Dioxide Emissions and Fuel/Energy Consumption UN Regulation No. 101 UN R101, Uniform provisions concerning the approval of motor vehicles with regard to their pedestrian safety performance Pedestrian Safety Pedestrian Safety UN Regulation No. 127 UN R127, and Uniform provisions concerning the approval of Retrofit Emission Control devices (REC) for heavy duty vehicles, agricultural and forestry tractors and non-road mobile machinery equipped with compression ignition engines WP.29 adopted the first phase text of the REC regulation at its November 2013 session. A second phase text is under consideration. Retrofit Emissions Retrofit Emission Control Devices UN Regulation No. 132 UN R132
20 Jan 2015 20 Jan 2015 | Greening Testing Laboratories obtains Accreditation as a Technical Service for ECE R90 RDW and VCA RDW Rijksdienst voor Wegverkeer and VCA Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers

UNECE R90, covering key replacement components for brakes, is closely tied to UNECE R13/R13-H and R78 governing brake systems for commercial/passenger vehicles and motorcycles, respectively. The drum-brake lining provisions apply specifically to medium and heavy vehicles and trailers.

While this rule addresses situations specific to replacement brake linings, these products may alternatively be approved through UNECE R13/13-H or R78. Consequently, products approved under the above rules do not require subsequent reapproval under UNECE R90 for use in vehicle maintenance.

However, such brake components that have not been approved under UNECE R13 or R78 and which are intended for vehicles approved under those rules must comply with UNECE R90.

Replacement Brake Components Replacement Brake Linings, Discs, and Drums UN Regulation No. 90 UN R90
Access all 2 headlines (This may take a minute.)

Development of the Regulation

Pending Changes to UN R90

Latest Documents

23 Dec 2019
UN R90: Proposal for a Supplement 5 to the 02 series of amendments | WP.29/2020/8
27 Sep 2019
UN R90: Proposal for amendments | GRVA-04-54
27 Sep 2019
Approval number, marking and Unique Identifier | GRVA-04-48
See all 86 related documents

Latest Meeting Discussions

World Forum for the Harmonization of Vehicle Regulations | Session 180 | 9-12 Mar 2020
Working Party on Automated and Connected Vehicles | Session 5 | 10-14 Feb 2020
Working Party on Automated and Connected Vehicles | Session 4 | 24-27 Sep 2019
See more related meetings