Pursuant to the Resource Conservation and Recovery Act (RCRA or Act), the Environmental Protection Agency (EPA) is taking direct final action to approve revisions to the State of North Dakota's Underground Storage Tank (UST) program submitted by the State. The EPA has determined that these revisions satisfy all requirements needed for program approval. The State's federally-authorized and codified UST program, as revised pursuant to this action, will remain subject to the EPA's inspection and enforcement authorities under sections 9005 and 9006 of RCRA subtitle I and other applicable statutory and regulatory provisions.