Requests for public bids are governed by Alaska Stat. Chapter 36.30 (State Procurement Code). The request for public bids may require the contractor to furnish equipment, labor, materials, and supplies for the project, or it may state that the department will furnish the materials and supplies. If the department elects to provide materials and supplies for a project, it shall do so at the time it adopts the construction program. The department shall acquire these materials and supplies under Alaska Stat. Chapter 36.30 by requesting bids for them according to the class, type, and nature of the materials and supplies. The contract for materials and supplies may be awarded either upon the basis of delivery to the construction project directly or to a central storehouse or storehouses maintained by the department. Those materials and supplies so purchased by the department may be delivered to the project site without expense to the contractor, or it may sell them to the contractor at cost and make the materials and supplies a part of the construction cost.