NFC tags are programmed with just about any sort of information and then plopped into almost any product, letting you read them with a smartphone or another NFC-capable device. 

NFC is a type of radio communication standard, much like Bluetooth, Wifi and other networking technologies.

-ISO 14223 RFID use on animals

-ISO 14443 RFID use in passports and ID cards

-ISO 15693 RFID use for financial transactions

-ISO 18000 RFID use for item management