The Resource Conservation and Recovery Act of 1976 (RCRA), as amended, authorizes the United States Environmental Protection Agency (EPA) to grant approval to any State to operate its underground storage tank program in the State in lieu of the federal program. 40 CFR part 282 codifies EPA's decision to approve State programs and incorporates by reference those provisions of the State statutes and regulations that will be subject to EPA's inspection and enforcement authorities under sections 9005 and 9006 of RCRA subtitle I and other applicable statutory and regulatory provisions. This rule codifies in part 282 the approval of the Commonwealth of Puerto Rico's underground storage tank program and incorporates by reference appropriate provisions of the Commonwealth's statutes and regulations.