I
IANA (Internet Assigned Number Authority)

Authority responsible for assigning default port numbers to common applications on the Internet. Also responsible for character set identifiers, and the current list can be accessed from ftp://ftp.isi.edu/in-notes/iana/assignments/languages (the procedure for proposing a new variant is described in RFC 1766.

See also [IanaCode]
IanaCode

{36} A language identifier defined by the IANA (the Internet Assigned Number Authority), used for variants not covered by ISO 639. Part of the Langcode{34} rule, which is used in the xml:lang attribute.

ICADD (International Committee for Accessible Document Design)

A committee formed in 1992 to promote access to documents by print-impaired readers. An ICADD-compliant ...

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