The noise made by studded tires makes enforcement easy. State troopers need only listen for violators.

Troopers of the Washington State Patrol will enforce a $124 fine for those who use studded tires after the deadline. Violators are very likely to be caught, because troopers need only listen for the distinctive noise of studs grinding on pavement.

"That's the sound of damage being done to our roads," said State Patrol Chief John R. Batiste. "If we hear it we will take enforcement action."

WSDOT advises drivers to work with local tire dealers to determine the best type of tire for their anticipated winter driving conditions. WSDOT wants motorists to be aware that a variety of studded tire alternatives are available and that they can continue to use other approved traction tires. WSDOT lists alternatives to studded tires and the damage studded tires do to state highways on its web site at

In addition, starting April 1, vehicles or combination of vehicles over 10,000 lbs. gross vehicle weight rating (GVWR) can legally remove mandated tire chains. These vehicles are required to carry chains from Nov. 1 – March. 31.

WSDOT officials do advise all drivers to carry tire chains and to monitor weather forecasts at the WSDOT Web site at

Know Before you go:

  • Get information from our Web site at before you leave your home or office.
  • 511 – This driver information phone line provides current traffic, incident and closure information. TTY users can call 1-800-833-6388. Out-of-state callers can access the information at call 1-800-695-ROAD (7623).
  • Mountain pass conditions are available at
  • Sign up for news. WSDOT offers subscribers more than 25 specialized e-mail alerts, including news and information for freight haulers, construction related traffic revisions, project updates from all around the state, and timely updates on pass conditions. Visit and click the link for "E-mail updates."
  • Twitter users can add WSDOT to their personal accounts at: . Go to for more details.


Know On the Road:

  • Overhead and roadside electronic signs
  • Highway advisory radio – WSDOT advises drivers to program 530AM and 1610AM on your radio.