# ISO 3309:1991/Amd 2:1992 — Withdrawn and superseded ISO standards

For ISO 3309:1991/Amd 2:1992, item title is Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Frame structure — Amendment 2; status code is 9599; successor is ISO/IEC 3309:1993; withdrawn / published date is 1992-01-23, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3309:1991/Amd 2:1992 _(verified: appears in the quote below)_
- **Item title:** Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Frame structure — Amendment 2 _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 3309:1993
- **Withdrawn / published date:** 1992-01-23 _(verified: appears in the quote below)_

## What the source says

> 8560,IS,Amd,ISO 3309:1991/Amd 2:1992,Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Frame structure — Amendment 2,Technologies de l'information — Télécommunications et échange d'information entre systèmes — Procédure de commande de liaison de données à haut niveau (HDLC) — Structure de trame — Amendement 2,1992-01-23,4,['35.100.20'],ISO/IEC JTC 1/SC 6,9599,,[8561],['en'],1,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).