2014JIS X 0221:2014 Information technology -- Universal Coded Character Set (UCS)
2007JIS X 0221:2007 Information technology -- Universal Multiple-Octet Coded Character Set (UCS)
2001JIS X 0221-1:2001 Information technology -- Universal Multiple-Octet Coded Character Set (UCS) -- Part 1: Architecture and Basic Multilingual Plane