Multipurpose Internet Mail Extensions (MIME) and Media Types 2012-07-20 2026-02-24 FCFS (Organization subject to IESG Approval) This registry, unlike some other provisional IANA registries, is only for temporary use. Entries in this registry are either finalized and moved to the main media types registry or are abandoned and deleted. Entries in this registry are suitable for use for development and test purposes only. Media Types: application/odm+json CDISC text/cmcd Consumer Technology Association (CTA) text/asciidoc Eclipse Foundation AISBL application/json-nd ECMA application/cert-chain+cbor IETF application/ion IETF application/kb+cwt IETF application/pkix-keyinfo IETF application/roughtime-malfeasance+json IETF application/roughtime-server+json IETF application/sd-cwt IETF application/signed-exchange IETF application/voucher+cose IETF application/webbundle IETF application/1ob IMS Global Learning Consortium Inc. image/j2is ITU-T and ISO/IEC JTC 1 application/jcr-sql2 Java Community Process (JCP) application/jcr-xpath Java Community Process (JCP) application/akn+xml OASIS text/nfo Seantek application/clf+xml Society of Motion Picture and Television Engineers (SMPTE) application/CESR Trust Over IP Foundation application/netcdf Unidata application/reports+json W3C application/rif+xml W3C application/won IETF/W3C/other Alex Giladi mailto:alex.giladi&gmail.com 2025-08-21 Chet Ensign mailto:chet.ensign&oasis-open.org 2021-04-05 Douglas Creager mailto:dcreager&google.com 2018-06-26 Ethan Davis mailto:edavis&ucar.edu 2021-12-16 Frédéric Desbiens mailto:frederic.desbiens&eclipse-foundation.org 2025-07-10 Frederick Walls mailto:fwalls&m.smpte.org 2025-10-28 Glen Kleidon mailto:glenk&galkam.com.au 2020-07-22 ISO/IEC JTC 1/SC 29/WG 1 Convenor mailto:sc29-sec&itscj.ipsj.or.jp 2023-05-15 Jonathan Hohle mailto:jonhohle&gmail.com 2017-06-28 Julian Reschke mailto:julian.reschke&greenbytes.de 2025-11-24 Rob Coyle mailto:rcoyle&1edtech.org 2023-05-11 Roy T. Fielding mailto:fielding&gbiv.com 2015-08-25 Sam Hume mailto:shume&cdisc.org 2018-10-31 Samuel M. Smith mailto:sam&samuelsmith.org 2024-02-15 Sandro Hawke mailto:sandro&w3.org 2021-01-11 Sean Leonard mailto:dev+ietf&seantek.com 2015-10-21