NRS 484D.520: Traction devices, tire chains or snow tires: Requirements under certain circumstances.

1. If a highway in this State is marked or posted with signs requiring the use of traction devices, tire chains or snow tires, a motor vehicle or combination of vehicles must be equipped with:

(a) Traction devices, tire chains or snow tires if it has a gross weight or combined gross weight of 10,000 pounds or less.

(b) Tire chains if it has a gross weight or combined gross weight of more than 10,000 pounds.

2. If a highway in this State is marked or posted with signs requiring the use of traction devices or tire chains on all motor vehicles except vehicles with 4-wheel drive and snow tires on all wheels, all such motor vehicles must be equipped with traction devices or tire chains.