This International Standard specifies the requirements for the EAN/UPC symbology including data character encodation, symbol formats, dimensions, test specifications, and a reference decoding algorithm. Data content and the rules governing the use of this symbology are defined in the UCC/EAN system specifications. Publication date: 2009 This product is a single user license only. Copying and/or networking is prohibited. By purchasing this product, you agree to abide by the AIM End User License Agreement.