This recommended practice covers two methods of providing cathodic protection for buried steel petroleum storage and dispensing systems. Its intent is to provide information specific to buried steel structures such as motor fuel storage tanks and delivery piping@ waste oil tanks@ heating-oil tanks@ and automobile lifts installed at service stations. Information presented for service stations is not necessarily applicable to buried tanks and piping used for other purposes. This recommended practice is intended to serve only as a general guide to marketers@ architects@ and engineers interested in cathodic protection of underground petroleum storage and dispensing systems. Specific cathodic protection designs are not provided. Such designs should be developed or adapted by a qualified corrosion engineer or a person thoroughly familiar with cathodic protection practices.