R13-3-1012. Heavy-duty Tow Truck-tractor and Semi-trailer Combination

A heavy-duty tow truck-tractor and semi-trailer combination has a minimum of: 1. A truck tractor with a G.V.W.R. of 35,000 pounds; 2. Tandem rear axles for both a truck-tractor and semi- trailer; 3. A G.V.W.R. of 30,000 pounds on the semi-trailer; 4. A power-operated winch with a single line pull capacity of 20,000 pounds and a 1/2-inch diameter wire rope with a breaking strength of 21,400 pounds; 5. Chains or straps and hooks that meet the requirements of R13-3-1104; 6. Axles, tires, and wheels that meet the requirements of R13-3-1102; and 7. Air brakes that meet the requirements of R13-3-1103 for both a truck-tractor and semi-trailer.