| UN R13 Heavy-Duty Braking | Uniform Provisions Concerning the Approval of Vehicles of Categories M, N and O with regard to Braking Heavy-Duty Braking Heavy-Duty Vehicle Braking UN Regulation No. 13 UN R13 |
| UN R13-H Light Vehicle Braking | Uniform Provisions Concerning the Approval of Passenger Cars with regard to Braking Light Vehicle Braking Light-Duty Vehicle Braking UN Regulation No. 13-H UN R13-H |
| UN R30 Pneumatic Tires | Uniform Provisions Concerning the Approval of Pneumatic Tyres for Motor Vehicles and their Trailers This rule applies primarily, but not exclusively, to tires for use on passenger cars and their trailers. Pneumatic Tires Pneumatic Tires UN Regulation No. 30 UN R30 |
| UN R54 CV Tires | 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 |
| UN R55 Mechanical Couplings | Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles Mechanical Couplings Mechanical Coupling Components UN Regulation No. 55 UN R55 |
| UN R64 Spare Tires | "Uniform provisions concerning the approval of vehicles with regard to their equipment which may include: a temporary- use spare unit, run-flat tyres. Spare Tires Temporary-use Tires UN Regulation No. 64 UN R64 |
| UN R75 Motorcycle Tires | 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 |
| UN R78 Motorcycle Braking | Uniform Provisions Concerning the Approval of Vehicles of Categories L1, L2, L3, L4, and L5 with regard to Braking Motorcycle Braking Motorcycle and Moped Braking UN Regulation No. 78 UN R78 |
| UN R79 Steering Equipment | Uniform Provisions Concerning the Approval of Vehicles with regard to Steering Equipment Steering Equipment Steering Equipment UN Regulation No. 79 UN R79 |
| UN R89 Speed Limitation Devices | Uniform Provisions Concerning the Approval of: I. Vehicles with regard to Limitation of their Maximum Speed II. Vehicles with regard to the Installation of a Speed Limitation Device (SLD) of an Approved Type III. Speed Limitation Devices (SLD) Speed Limitation Devices Speed Limitation Devices UN Regulation No. 89 UN R89 |
| UN R90 Replacement Brake Components | Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers <p>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.</p> <p>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.</p> <p>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.</p> Replacement Brake Components Replacement Brake Linings, Discs, and Drums UN Regulation No. 90 UN R90 |
| UN R102 Close-Coupling Devices | Uniform Provisions Concerning the Approval of: I. A Close-Coupling Device (CCD) II. Vehicles with regard to the Fitting of an Approved Type of CCD Close-Coupling Devices Close-Coupling Devices UN Regulation No. 102 UN R102 |
| UN R106 Agricultural Tires | Uniform Provisions Concerning the Approval of Pneumatic Tyres for Agricultural Vehicles and their Trailers Agricultural Tires Tires for Agricultural Vehicles UN Regulation No. 106 UN R106 |
| UN R108 Retreaded Tires | Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Motor Vehicles and their Trailers Retreaded Tires Retreaded Tires for Motor Vehicles UN Regulation No. 108 UN R108 |
| UN R109 CV Retreaded Tires | Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Commercial Vehicles and their Trailers CV Retreaded Tires Retreaded Tires for Commercial Vehicles UN Regulation No. 109 UN R109 |
| UN R111 Tank Vehicle Stability | Uniform Provisions Concerning the Approval of Tank Vehicles of Categories N and O with regard to Rollover Stability Tank Vehicle Stability Tank Vehicle Rollover Stability UN Regulation No. 111 UN R111 |
| UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance | Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Tire Noise, Wet Adhesion, and Rolling Resistance Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance UN Regulation No. 117 UN R117 |
| UN R124 Passenger Car/Trailer Wheels | Uniform Provisions Concerning the Approval of Wheels for Passenger Cars and their Trailers Passenger Car/Trailer Wheels Passenger Car and Trailer Wheels UN Regulation No. 124 UN R124 |
| UN R130 Lane-departure Warning | Regulation on uniform provisions concerning the approval of motor vehicles with regard to the Lane Departure Warning System Lane-departure Warning Lane Departure Warning Systems UN Regulation No. 130 UN R130 |
| UN R131 Advanced Emergency Braking | Uniform provisions concerning the approval of motor vehicles with regard to advanced emergency braking systems Advanced Emergency Braking Advanced Emergency Braking Systems UN Regulation No. 131 UN R131 |
| UN R139 Brake Assist Systems | Uniform provisions concerning the approval of passenger cars with regard to brake assist systems Project to separate brake assist systems provisions from UN R13-H and into a new UN Regulation. Brake Assist Systems Brake Assist Systems UN Regulation No. 139 UN R139 |
| UN R140 ESC Systems | Uniform provisions concerning the approval of passenger cars with regard to electronic stability control systems This regulation was established through the extraction of ESC provisions from UN Regulation 13-H. ESC Systems Electronic Stability Control Systems UN Regulation No. 140 UN R140 |
| UN R141 Tyre Pressure Monitoring Systems | Uniform provisions concerning the approval of vehicles with regard to their tyre pressure monitoring systems Program to separate tyre-pressure monitoring systems provisions from UN Regulation No. 64 on spare tyres. The primary issue is to remove provisions from UN R64 that will not be included in the initial phase of the International Whole Vehicle Type Approval (IWVTA) system. Tyre Pressure Monitoring Systems Tyre Pressure Monitoring Systems UN Regulation No. 141 UN R141 |
| UN R142 Tyre Installation | Regulation on uniform provisions concerning the approval of motor vehicles with regard to the installation of their tyres (tentative title pending regulation development) Tyre Installation Tyre Installation UN Regulation No. 142 UN R142 |
| UN R147 Agricultural vehicle couplings | Uniform Provisions Concerning the Approval of Mechanical Coupling Components of Combinations of Agricultural Vehicles Agricultural vehicle couplings Mechanical coupling components for agricultural vehicles UN Regulation No. 147 UN R147 |
| UN R178 ELKS | Uniform provisions concerning the approval of motor vehicles with regard to the Emergency Lane Keeping Systems (ELKS) for M<sub>1</sub> and N<sub>1</sub> vehicles This topic includes 2013-2016 deliberations on the potential benefits of lane-keeping assistance systems and a 2024 proposal from Australia to establish a new UN Regulation based on <a href="https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2021.133.01.0031.01.ENG&toc=OJ%3AL%3A2021%3A133%3ATOC" target="_blank">Regulation (EU) 2021/646 of 19 April 2021</a>. ELKS Emergency Lane-Keeping Systems UN Regulation No. 178 UN R178 |