The Board, with the concurrence of the Office of the City Administrative Officer, shall determine on a regular basis, not less frequently than once every two years, the verifiable cost to the City for the certificate fees and the fees for the evacuation oversight for high-rise buildings. These costs shall be the actual costs incurred as determined by the Board. The costs shall include both direct and indirect costs to the City. The Board shall use these costs to develop a cost recovery schedule of applicable charges. The Board shall adopt such costs as fees at any time during each fiscal year. The cost recovery schedule shall recover the verifiable annual costs of administering the certificates for Fire Safety Directors and Floor Wardens, as well as the administration of the total evacuation oversight for high-rise buildings, which shall include the cost of collection of any fees due and owing in connection with these fees. It shall take into consideration the number of certificates issued that are subject to the fees. Upon adoption of a schedule of verifiable costs by the Board, as provided herein, the Board shall transmit the Board order to the Mayor and to the City Council for approval.