To reduce highway accidents at night all number plates authorized by § 32-5-82 shall be reflectorized to an extent, under such method, and to a degree to be maintained all during the service life of the plates as determined by the department. In determining the quality of reflectorization, the department, in addition to the consideration of the prices bid, shall determine the practicability of manufacture of the plates in the license plate plant of the state penitentiary, and the durability of any material proposed by bidders. After consideration, the department shall eliminate any bid or process not deemed feasible.
SDCL 32-5-86