Operating Requirements. This chapter establishes the: Operating requirements for a vehicle with four or more axles, one of which shall be a lift axle, operating with a dump service registration at a maximum 70,000 pound gross vehicle weight (GVW); and Requirements for the lift axle to be used on this vehicle. A new manufactured or modified vehicle subject to these regulations shall meet or exceed all applicable federal Motor Vehicle Safety Standards (49 CFR 393, 567, and 568) and appropriate State safety laws and standards.