The IANA will only register media types in the standards tree in
response to a communication from the IESG stating that a given
registration has been approved. Vendor and personal types will be
registered by the IANA automatically and without any formal approval
process as long as the following minimal conditions are met:
o Media types MUST function as an actual media format. In
particular, charsets and transfer encodings MUST NOT be registered
as media types.
o All media types MUST have properly formed type and subtype names.
All type names MUST be defined by a standards-track RFC. All
type/subtype name pairs MUST be unique and MUST contain the proper
tree prefix.
o Types registered in the personal tree MUST either provide a format
specification or a pointer to one.
o All media types MUST have a reasonable security considerations
section. (It is neither possible nor necessary for the IANA to
conduct a comprehensive security review of media type
registrations. Nevertheless, the IANA has the authority to
identify obviously incompetent material and return it to the
submitter for revision.)
Registrations in the standards tree MUST satisfy the additional
requirement that they originate from the IETF itself or from another
standards body recognized as such by the IETF.
