Signs of spring are all over the Pacific Northwest - blooming flowers, budding trees, warmer temps. And along with the warmer temperatures comes the deadline for removal of studded tires in Oregon and Washington. Drivers must have their studded tires off their vehicles by midnight Sunday, March 31.

Those who have waited until the last minute, and normally use a shop to rotate their tires, may find long lines this weekend. Studded tires are allowed in both states from Nov 1- March 31. Occasionally the states will extend the deadline due to unusual weather conditions. But Saturday’s forecasted high of 66 for Portland isn’t going to do the trick.

For those who need to travel at higher elevations throughout the spring, a better option may be studdless snow tires rated for winter travel that meet the Rubber Manufacturers Association standards for use in severe snow conditions. These do not need to be removed and can be used year-round.

Oregonian file photo

The Oregon Department of Transportation also encourages drivers to consider using other types of traction tires or to use chains for driving in ice or snow to help minimize roadway damage caused by studded tires. A 2014 study concluded studded tires cause about $8.5 million in damage each year to Oregon’s highways.

Drivers with studded tires on their vehicles after the March 31 deadline can be charged by law enforcement with a Class C traffic violation in Oregon or a traffic infraction in Washington. Fees range from about $136 to $200.

ODOT says on its website that maintenance crews will continue to monitor highways at higher elevations and check weather forecasts and will work to clear any late-season snow or ice as soon as possible. If you must travel when weather conditions present difficulties after March 31, use other types of traction tires or chains, or postpone your travel until conditions change for the better.

In Washington State, studded tires do not satisfy chain requirements. If chains are required - drivers must install them even over studded tires. Washington also has no individual exception to the end of studded tire season. Take them off by Sunday night.