The State of New Hampshire has amended the regulations previously approved by EPA under Subtitle I of the Resource Conservation and Recovery Act (RCRA). EPA has determined that these amendments satisfy all requirements needed for program approval and is approving the State's changes through this immediate final action. EPA is publishing this rule to approve the changes without a prior tentative determination because we believe this action is not controversial and do not expect comments that oppose it. Unless we get written comments which oppose this approval during the comment period, the decision to approve New Hampshire's amendments to its underground storage tank (UST) program will take effect as provided below. If we receive comments that oppose this action, we will publish a document in the Federal Register withdrawing this rule before it takes effect, and the separate document in the proposed rules section of this Federal Register will serve as the proposal to approve the amendments.