upon payment of all expenses for the establishment of the memorial (including the maintenance and preservation amount required by section 8906(b)(1) of title 40, United States Code), there remains a balance of funds received for the establishment of the commemorative work, the Foundation shall transmit the amount of the balance to the Secretary of the Interior for deposit in the account provided for in section 8906(b)(3) of title 40, United States Code. (2) On expiration of authority If upon expiration of the authority for the commemorative work under section 8903(e) of title 40, United States Code, there remains a balance of funds received for the establishment of the commemorative work, the Foundation shall transmit the amount of the balance to a separate account with the National Park Foundation for memorials, to be available to the Secretary of the Interior or Administrator (as appropriate) following the process provided in section 8906(b)(4) of title 40, United States Code, for accounts established under 8906(b)(2) or (3) of title 40, United States Code.