Clean, water-free fuel of the correct grade is essential to the safety of aircraft and the crews that fly them. This manual emphasizes preventive maintenance to avoid system shutdowns, prevent fuel contamination, and decrease fire, safety, and health hazards. Periodic inspections and servicing are essential to continue efficient safe operations and reduce major repairs. This manual applies to all real property facilities used for storing, distributing, and dispensing fuels for reciprocating and jet engine aircraft, unconventional fuels for jet thrust augmentation, liquid propellants for missiles or rockets, automotive fuels, aircraft lubricating oils, and military all-purpose diesel fuel. This manual does not cover mobile fueling equipment because it is not a base civil engineer (BCE) responsibility, nor does it include heating oil systems or power production fuel systems.