# ISO 15501-2:2001 — Withdrawn and superseded ISO standards For ISO 15501-2:2001, item title is Road vehicles — Compressed natural gas (CNG) fuel systems — Part 2: Test methods; status code is 9599; successor is ISO 15501-2:2016; withdrawn / published date is 2001-06-28, recorded from its source on 2026-08-05. - **Identifier:** ISO 15501-2:2001 _(verified: appears in the quote below)_ - **Item title:** Road vehicles — Compressed natural gas (CNG) fuel systems — Part 2: Test methods _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 15501-2:2016 - **Withdrawn / published date:** 2001-06-28 _(verified: appears in the quote below)_ ## What the source says > 28270,IS,,ISO 15501-2:2001,Road vehicles — Compressed natural gas (CNG) fuel systems — Part 2: Test methods,Véhicules routiers — Systèmes d'alimentation en gaz naturel comprimé (GNC) — Partie 2: Méthodes d'essai,2001-06-28,1,['43.060.40'],ISO/TC 22/SC 41,9599,,[68369],"['en','fr']",8, ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).