http://www.rfc-editor.org/rfc/rfc2781.txt
RFC 2781: UTF-16, an encoding of ISO 10646, P. Hoffman, F. Yergeau2000-02-01T23:00:00-00:00This document describes the UTF-16 encoding of Unicode/ISO-10646, addresses the issues of serializing UTF-16 as an octet stream for transmission over the Internet, discusses MIME charset naming as described in [CHARSET-REG], and contains the registration for three MIME charset parameter values: UTF-16BE (big-endian), UTF-16LE (little- endian), and UTF-16. This memo provides information for the Internet community.