Yes. International standards have been adopted for some applications, such as tracking animals. Many other standards initiatives are under way. The most interesting efforts involve GTag, which is promoted by EAN and UCC as a way to communicate with UHF tags; ISO 18000-6, which is an international effort that forms the foundation for the GTag standard; and the Auto-ID Center's electronic product code (EPC). ISO11784/5 for Animal Identification (134.2kHz), ISO14443 for Contactless Proximity cards (13.56MHz), ISO15693 for Vicinity Cards (13.56MHz). More standards are on the way including ISO18000 which defines operation at all frequencies.