ISO/IEC 7812

ISO/IEC 7812 Identification cards — Identification of issuers was first published by the International Organization for Standardization (ISO) in 1989. It is the international standard that specifies "a numbering system for the identification of issuers of cards that require an issuer identification number (IIN) to operate in international, interindustry and/or intra-industry interchange", and procedures for registering IINs. ISO/IEC 7812 has two parts:

• Part 1: Numbering system
• Part 2: Application and registration procedures