RFC 1590 · INFORMATIONAL · 1994

Media Type Registration Procedure

Overview

RFC 1590, “Media Type Registration Procedure”, is an Informational document published in March 1994 by J. Postel. It updates RFC 1521. It has been obsoleted by RFC 2045, RFC 2046, RFC 2047, RFC 2048, RFC 2049 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

Several questions have been raised about the requirements and administrative procedure for registering MIME content-type and subtypes, and the use of these Media Types for other applications. This document addresses these issues and specifies a procedure for the registration of new Media Types (content-type/subtypes). It also generalizes the scope of use of these Media Types to make it appropriate to use the same registrations and specifications with other applications. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

Abstract as published in the RFC, via rfc-editor.org.

What “Informational” means

Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.

Read this RFC

The canonical text of RFC 1590 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC updates
RFC 1521
Other RFCs from 1994

Who Is Online

In total there are 64 users online: 0 registered, 56 guests and 8 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Googlebot Other Bot PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372