# ISO 13209-4:2021 — Withdrawn and superseded ISO standards

For ISO 13209-4:2021, item title is Road vehicles — Open Test sequence eXchange format (OTX) — Part 4: Expanded extensions interface definition; status code is 9599; successor is ISO 13209-4:2024; withdrawn / published date is 2021-05-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 13209-4:2021 _(verified: appears in the quote below)_
- **Item title:** Road vehicles — Open Test sequence eXchange format (OTX) — Part 4: Expanded extensions interface definition _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 13209-4:2024
- **Withdrawn / published date:** 2021-05-21 _(verified: appears in the quote below)_

## What the source says

> 74090,IS,,ISO 13209-4:2021,Road vehicles — Open Test sequence eXchange format (OTX) — Part 4: Expanded extensions interface definition,Véhicules routiers — Format public d'échange de séquence-tests (OTX) — Partie 4: Définition de l'interface des extensions étendues,2021-05-21,1,"['43.040.15','43.180']",ISO/TC 22/SC 31,9599,,[84212],['en'],379,"<p>This document defines the Open Test sequence eXchange (OTX) additional extension requirements and data model specifications.</p><p>The requirements are derived from the use cases described in ISO 13209-1. They are listed in Clause 4.</p><p>The data model specification aims at an exhaustive definition of all features of the OTX extensions which have

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).