No forest products owned by the department shall be cut, removed or destroyed unless approved in advance by the department. The lessee shall appropriately mark all forest products proposed to be cut. Unless the department elects to directly dispose of the forest products, the department will appraise the forest products and the lessee shall pay the appraised value of such forest products within thirty days of billing unless there is written extension of time by the department, and in any event, prior to their cutting.