# ISO 21384-4:2020 — Withdrawn and superseded ISO standards

For ISO 21384-4:2020, item title is Unmanned aircraft systems — Part 4: Vocabulary; status code is 9599; successor is ISO 21384-4:2025; withdrawn / published date is 2020-05-26, recorded from its source on 2026-08-05.

- **Identifier:** ISO 21384-4:2020 _(verified: appears in the quote below)_
- **Item title:** Unmanned aircraft systems — Part 4: Vocabulary _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 21384-4:2025
- **Withdrawn / published date:** 2020-05-26 _(verified: appears in the quote below)_

## What the source says

> 76785,IS,,ISO 21384-4:2020,Unmanned aircraft systems — Part 4: Vocabulary,Aéronefs sans pilote — Partie 4: Vocabulaire,2020-05-26,1,"['49.020','01.040.49']",ISO/TC 20/SC 16,9599,,[85053],['en'],10,<p>This document defines terms and definitions relating to unmanned aircraft systems that are widely used in science and technology.</p>

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).