An operator of a tow car may use a rigid bar, tow line or cradle to tow a vehicle that is incapable of self-propulsion but is capable of being moved on its own wheels; however, the operator must have full control of the vehicle being towed. Unless it is necessary to remove a vehicle which is blocking a lane of traffic, an operator of a tow car shall not push any vehicle.
Nev. Admin. Code § 706.434
NRS 706.171