# ISO/IEC 7809:1991 — Withdrawn and superseded ISO standards

For ISO/IEC 7809:1991, item title is Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Classes of procedures; status code is 9599; successor is ISO/IEC 7809:1993; withdrawn / published date is 1991-09-26, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 7809:1991 _(verified: appears in the quote below)_
- **Item title:** Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Classes of procedures _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 7809:1993
- **Withdrawn / published date:** 1991-09-26 _(verified: appears in the quote below)_

## What the source says

> 14707,IS,,ISO/IEC 7809:1991,Information technology — Telecommunications and information exchange between systems — High-level data link control (HDLC) procedures — Classes of procedures,Technologies de l'information — Télécommunications et échange d'informations entre systèmes — Procédures de commande de liaison de données à haut niveau (HDLC) — Classes de procédures,1991-09-26,2,['35.100.20'],ISO/IEC JTC 1/SC 6,9599,"[14711,14712,14706,14710,12536,12405]",[14713],['en'],18,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).