Purpose This bulletin is written to provide individuals or groups with a system for marking aviation fuel types and grades on fuel handling installations and equipment at airports. In addition to the requirements on the airports for proper marking and color coding@ there is a need throughout the aviation industry generally for uniformity in product names. The aviation gasoline and turbine fuel naming system suggested herein for airport usage is recommended for world-wide use@ not only on the airport equipment@ but for all communications where it is desirable to identify aviation gasolines and turbine fuels by types and grades. The markings and color coding system described herein are suitable for world-wide adoption. It is the outgrowth of a joint effort combining the recommendations of the European and American aviation industries. The International Air Transport Association has been particularly helpful in the development of this world-wide system.