AIAG member work group focuses efforts on RFID applications and demonstrates the use of single RFID tags to enable information support in the supply chain. …
… “The Case Study Using RFID on Returnable Transport Items (B-19) is the result of major OEM’s, Tier 1 manufacturers, and RFID equipment manufacturers collaborating to prove an important point – RFID interchangeability and interoperability is a reality today if the standards are followed. The B-19 is proof that the B-11 (Item Level RFID Standard) works. ” …
Via AIAG: Two Types of Standards-Based Information Can Be Carried On A Single RFID Tag (PDF)
RFIDa: RFID Technology is an internet destination dedicated to documenting the application of radio frequency identification technologies. 
