The Internet Assigned Numbers Authority (IANA) is the international body responsible for assigning names for protocols used on the Internet.
Text media types (such as a type that begins with text/, or a type that contains +xml) are identified by RFC 3023, which is available at http://www.ietf.org/rfc/rfc3023.txt.
CICS® does not support all the IANA character sets for code page conversion. The character sets that CICS supports are described in HTML coded character sets.