In 1991, BCI published a reference guide [13] containing 2300 vocabulary items and detailed rules for the graphic design of additional characters, so they settled a first set of approved Bliss-words for general use. The Standards Council of Canada then sponsored, on January 21, 1993, the registration of an encoded character set for use in ISO/IEC 2022, in the ISO-IR international registry of coded character sets. After many years of requests, the Blissymbolic language was finally approved as an encoded language, with code zbl, into the ISO 639-2 and ISO 639-3 standards.