JIS X 0212 is a Japanese Industrial Standard defining coded character set for encoding the characters used in Japanese. This standard extends JIS X 0208.
In 1990 the Japanese Standards Association (JSA) released a supplementary character set standard: JIS X 0212-1990 Code of the Supplementary Japanese Graphic Character Set for Information Interchange (情報交換用漢字符号-補助漢字, Jōhō Kōkan'yō Kanji Fugō - Hojo Kanji). This standard was intended to supplement and extend the range of characters available in the main JIS X 0208 character set, and to address shortcomings in the coverage of that set.
The standard specified 6,067 characters, comprising:
The following encodings or encapsulations are used to enable JIS X 0212 characters to be used in files, etc.