All persons, to be eligible to bid on asphalt plant mix to be sold to the State of Alabama, shall have the asphalt plants inspected and certified by the Department of Transportation. The certification shall be made by the Bureau of Materials and Tests and shall include a statement that the plant meets the requirements set forth in the current edition of the State of Alabama Department of Transportation standard specifications for highways and bridges.
Ala. Code § 39-1-2 (1975)