Standards.

• ISO/IEC JTC 1 Commitees: ISO 7810, ISO/IEC 18000 ff., 15459 ff., 10536

• ISO standard for containers: ISO 6346, ISO 10374

• ETSI EN 300 220, ETS 300 683

• Also the European Radiocommunications Office and the ANSI have standards for that topic ;-) Don't mention the IEEE...

• Many implementations are proprietary