ISO 15501-1:2025Published

Road vehicles — Compressed natural gas (CNG) fuel systems — Part 1: Safety requirements

Véhicules routiers — Systèmes d'alimentation en gaz naturel comprimé (GNC) — Partie 1: Exigences de sécurité

Abstract / scope

This document specifies the minimum safety requirements applicable for the functionality of compressed natural gas (CNG) on-board fuel systems intended for use on the types of motor vehicles defined in ISO 3833. This document is applicable to vehicles using compressed natural gas in accordance with ISO 15403-1, including mono-fuel, bi-fuel or dual-fuel applications, original-production and converted vehicles.

All matters relating to the skills of installers and converters have been excluded from this document.

Life cycle

Replaces

ISO 15501-1:2016WithdrawnRoad vehicles — Compressed natural gas (CNG) fuel systems — Part 1: Safety requirementsInternational Standard · Published 8 Nov 2016 · ISO/TC 22/SC 41ISO 15501-1:2016/Amd 1:2021WithdrawnRoad vehicles — Compressed natural gas (CNG) fuel systems — Part 1: Safety requirements — Amendment 1International Standard · Published 4 Jan 2021 · ISO/TC 22/SC 41