This standard specifies the requirements for the barcode symbol system known as Code 39. It specifies the characteristics of the Code 39 symbology, data character encoding, dimensions, tolerances, decoding algorithms, and application-defined parameters.
JIS X 0503:2000 history
2012JIS X 0503:2012 Bar code symbol -- CODE39 -- Basic specifications
2000JIS X 0503:2000 Bar code symbol -- CODE39 -- Basic specifications
1994JIS X 0503:1994 Bar code symbols -- NW-7 and CODE39 -- Basic specifications