Media Types
- Last Updated
- 2026-05-26
- Registration Procedure(s)
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Expert Review for Vendor and Personal Trees. For Standards Tree, see [RFC6838], Section 3.1.
- Expert(s)
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Alexey Melnikov, Darrel Miller, Murray Kucherawy
- Reference
- [RFC6838][RFC4855]
- Note
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[RFC2046] specifies that Media Types (formerly known as MIME types) and Media Subtypes will be assigned and listed by the IANA. Procedures for registering Media Types can be found in [RFC6838], [RFC4289], and [RFC6657]. Additional procedures for registering media types for transfer via Real-time Transport Protocol (RTP) can be found in [RFC4855]. Per Section 3.1 of [RFC6838], Standards Tree requests made through IETF documents will be reviewed and approved by the IESG, while requests made by other recognized standards organizations will be reviewed by the Designated Expert in accordance with the Specification Required policy. IANA will verify that this organization is recognized as a standards organization by the IESG. To request registration, please submit the form at the link below: [https://www.iana.org/form/media-types] Requests to update existing registrations should be sent to iana@iana.org. Related registries: Top-Level Media Types: [IANA registry top-level-media-types] Provisional Standard Media Type Registry: [IANA registry provisional-standard-media-types] Other Media Type Parameters: [IANA registry media-types-parameters] Media Type Sub-Parameters: [IANA registry media-type-sub-parameters] The following is the list of Directories of Content Types and Subtypes.
- Note
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Some early registrations have no registration template. The absence of a template does not imply a different or reduced registration status.
- Note
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Per Section 12.5.1 of [RFC9110], use of the "q" parameter name to control content negotiation would interfere with any media type parameter having the same name. Hence, the media type registry disallows parameters named "q".
- Available Formats
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XML
HTML
Plain text
Registries Included Below
application
- Available Formats
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CSV