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ECE R-134
Hydrogen-Fuelled Vehicle Safety
Applies to
M, N
Topic
EV & EMC
Framework
UN ECE
Velocert services
European
Overview
UN Regulation No 134 lays down uniform provisions for the approval of motor vehicles and their components with regard to the safety-related performance of hydrogen-fuelled vehicles. Part I covers compressed hydrogen storage systems, Part II their specific components, and Part III the vehicles.
Current series: 03 series (in force 4 June 2026); this summary is based on the version published on EUR-Lex, the original version, Supplement 3 (2018). GlobalAutoRegs also lists Supplements 1 and 2 to the 03 series with no entry-into-force date. Checked on GlobalAutoRegs, 1 November 2026. For the current text, see the UN (UNECE) page.
Scope
It applies to compressed hydrogen storage systems, their specific components, and hydrogen-fuelled vehicles of categories M and N incorporating such a system.
The regulation applies to the following vehicle categories:
M
Passenger vehicles
N
Goods vehicles
Official source
For the requirements of this regulation, refer to the official text in force and its amendments.
Official UNECE text