Technical Specifications for Hydrogen Engine Vehicles (Draft for Comments)

This document applies to hydrogen engine vehicles of Categories M and N and hydrogen engine hybrid electric vehicles; ammonia engine vehicles may refer to it. It specifies requirements and corresponding test methods for vehicle dimensions and mass, safety, hydrogen refuelling receptacles, on-board hydrogen systems, power performance, low-temperature starting, energy consumption and driving range, pollutant emissions, noise, electromagnetic compatibility, traction batteries, and driving reliability. Relevant vehicle manufacturers and testing entities should conduct safety, hydrogen-system, and performance tests according to the applicable vehicle category. Hybrid vehicles must not use lead-acid traction batteries, and hydrogen consumption measurements must follow the specified methods and equipment requirements.