# ISO 18443:2013 — Withdrawn and superseded ISO standards For ISO 18443:2013, item title is Space data and information transfer systems — Space Link Extension — Application Program Interface for Return Channel Frames Service; status code is 9599; successor is ISO 18443:2016; withdrawn / published date is 2013-05-29, recorded from its source on 2026-08-05. - **Identifier:** ISO 18443:2013 _(verified: appears in the quote below)_ - **Item title:** Space data and information transfer systems — Space Link Extension — Application Program Interface for Return Channel Frames Service _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 18443:2016 - **Withdrawn / published date:** 2013-05-29 _(verified: appears in the quote below)_ ## What the source says > 62458,IS,,ISO 18443:2013,Space data and information transfer systems — Space Link Extension — Application Program Interface for Return Channel Frames Service,Systémes de transfert des informations et données spatiales — Extension de liaisons spatiales — Interface du programme d'application pour service de réseau pour liaison retour,2013-05-29,1,['49.140'],ISO/TC 20/SC 13,9599,,[70705],['en'],67,
ISO 18443:2013 specifies extensions to the API needed for support of the Return Channel Frames (RCF) service defined in CCSDS 911.2-B-1.
ISO 18443:2013 defines extensions to the SLE API in terms of: