Section 281.11 - General requirements(a)State program elements. The following substantive elements of a state program must be addressed in a state application for approval: (1) Requirements for all existing and new underground storage tanks:(i) New UST systems (design, construction, installation, and notification);(ii) Upgrading of existing UST systems;(iii) General operating requirements;(v) Release reporting, investigation, and confirmation;(vi) Out-of-service USTs and closure;(vii) Release response and corrective action;(viii) Financial responsibility for UST systems containing petroleum; and(2) Provisions for adequate enforcement of compliance with the above program elements.(b)Final approval. The state must demonstrate that its requirements under each state program element for existing and new UST systems are no less stringent than the corresponding federal requirements as set forth in subpart C of this part. The state must also demonstrate that it has a program that provides adequate enforcement of compliance with these requirements.(c) States with programs approved under this part are authorized to administer the state program in lieu of the federal program and will have primary enforcement responsibility with respect to the requirements of the approved program. EPA retains authority to take enforcement action in approved states as necessary and will notify the designated lead state agency of any such intended action.