This recommended practice describes measures necessary to prevent and detect leaks from underground petroleum product storage tank systems@ as defined in 2.1@ at marketing and distribution facilities@ as defined in 2.2.
API RP 1635-1984 history
1987API RP 1635-1987 Management of Underground Petroleum Storage Systems at Marketing and Distribution Facilities (THIRD EDITION)
1984API RP 1635-1984 Recommended Practice for Underground Petroleum Product Storage Systems at Marketing and Distribution Facilities (SECOND EDITION)