The Department of Transportation, under the terms and conditions it considers to be in the best interest of the public for safety on the highways, may issue multiple trip permits for the moving of over-dimensional or overweight nondivisible loads over specified state highways determined by the Department of Transportation. The fee for the permit is fifty dollars, payable at the time of issuance, as long as a permit is purchased for each vehicle in the fleet, one hundred percent. A multiple trip permit is valid for one year from the date of issuance. To be valid, the original permit must be carried on the towing vehicle. It is unlawful for a person to violate a provision, term, or condition of the permit. The permit is subject at all times to inspection by a law enforcement officer or an authorized agent of the authority issuing the permit. A multiple trip permit is void one year from the date of issue or whenever the Department of Transportation is notified in writing that the permit has been lost, stolen, or destroyed.