The disposal agency may authorize the use of historic monuments conveyed under 40 U.S.C. 550(h) or the Surplus Property Act of 1944, as amended, for revenue-producing activities, if the Secretary of the Interior -
(a) Determines that the activities, described in the applicant's proposed program of use, are compatible with the use of the property for historic monument purposes;
(b) Approves the grantee's plan for repair, rehabilitation, restoration, and maintenance of the property;
(c) Approves the grantee's plan for financing the repair, rehabilitation, restoration, and maintenance of the property. DOI must not approve the plan unless it provides that all income in excess of costs of repair, rehabilitation, restoration, maintenance, and a specified reasonable profit or payment that may accrue to a lessor, sublessor, or developer in connection with the management, operation, or development of the property for revenue producing activities, is used by the grantee, lessor, sublessor, or developer, only for public historic preservation, park, or recreational purposes; and
(d) Examines and approves the grantee's accounting and financial procedures for recording and reporting on revenue-producing activities.