UN Global Technical Regulations (GTRs) - Harmonised Vehicle Standards: GTR 9 Pedestrian Safety, GTR 13 Hydrogen Fuel Cell, GTR 20 EVS, GTR 24 Brake Emissions (Light-Duty) and GTR 3 Motorcycle Brake Systems

What UN Global Technical Regulations (GTRs) - Harmonised Vehicle Standards: GTR 9 Pedestrian Safety, GTR 13 Hydrogen Fuel Cell, GTR 20 EVS, GTR 24 Brake Emissions (Light-Duty) and GTR 3 Motorcycle Brake Systems requires

The UN GTRs, developed under the 1998 Agreement and administered by the World Forum for Harmonization of Vehicle Regulations (WP.29) at UNECE, establish harmonized technical requirements for vehicle safety and environmental performance. This node covers pedestrian protection (GTR 9), hydrogen fuel cell vehicle safety (GTR 13), electric vehicle safety (GTR 20), the laboratory measurement of friction brake particulate emissions for light-duty vehicles - category M1 and N1 vehicles with a laden mass below 3,500 kg (GTR 24, adopted by WP.29 in June 2023), and motorcycle brake systems including Anti-lock Braking Systems (ABS) and Combined Braking Systems (CBS) (GTR 3, adopted 2006, major amendments adopted 2020). GTR 24 governs brake particulate emissions, not motorcycle braking; motorcycle ABS is governed by GTR 3. These regulations are referenced by Contracting Parties seeking type approval and are related to UN Regulations Nos. 155, 156 and 157.

Pillar: Automotive & Mobility · Authority: United Nations Economic Commission for Europe (UNECE), World Forum for Harmonization of Vehicle Regulations (WP.29) · Version: 1.1.0 · Last updated: 2026-06-29

Primary source: https://unece.org/transport/standards/transport/vehicle-regulations-wp29/global-technical-regulations-gtrs

SHA-256 integrity: 62310a34db151eb687565730638a5d9571cd9eaab267f6b5530c449ea3db17a2

Primary Citations — 5 traced to source

• UN GTR No. 9 - Pedestrian Safety (Protection of Pedestrians and Other Vulnerable Road Users)
• UN GTR No. 13 - Hydrogen and Fuel Cell Vehicles

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