Are studded tires legal in Wyoming?

Wyoming law sets no seasonal dates for studded tires. Wyoming law sets no studded tire season; studded tires are allowed if the studs are designed not to materially damage the road and the tires are approved by the WYDOT superintendent. W.S. 31-5-956(c)(iii) reads: "(iii) Pneumatic tires having studs designed to improve traction without materially injuring the surface of the highway. Pneumatic tires having studs must be approved by the superintendent."

Wyoming law sets no start or end date, so the conditions in the statute apply all year. Studded tires must be of a type approved by the superintendent and designed not to materially injure the highway surface.

Studded tires must be of a type approved by the superintendent and designed not to materially injure the highway surface.

WYDOT can impose two levels on specific highway sections. Level 1 limits travel to vehicles with chains, adequate snow tires, or all wheel drive. Level 2 limits travel to vehicles with chains or all wheel drive vehicles with adequate mud and snow or all weather rated tires, and commercial vehicles must chain two drive wheels on the same axle. The statute reads: "Level 2 When conditions are extremely hazardous, travel can be restricted to: Vehicles equipped with tire chains; or All-wheel-drive vehicles equipped with adequate mud and snow or all-weather-rated tires."

Tire chains under the statute include other traction devices that give traction equal to or better than metal chains.

Montana, October 1 through May 31; South Dakota, October 1 through April 30; Nebraska, November 1 through April 1; Colorado, no seasonal dates; Utah, October 15 through March 31; Idaho, October 1 through April 30. Each state's page quotes its own statute.