Except with respect to firm fixed-price contracts, no contract shall be used unless it has been determined in writing by the chief procurement officer, the head of a purchasing agency, or a designee of either officer that:
(1) The proposed contractor's accounting system will permit timely development of all necessary cost data in the form required by the specific contract type contemplated; and
(2) The proposed contractor's accounting system is adequate to allocate costs in accordance with generally accepted accounting principles.