Yes, studded tires are legal in Oregon but strictly regulated under ORS 815.160 and Oregon Department of Transportation (ODOT) policies. Use is permitted only from November 1 to March 31 on designated highways, with weight and stud protrusion limits enforced to mitigate road damage.
Key Regulations for Studded Tires in Oregon
- Seasonal Restriction: Operation permitted exclusively between November 1 and March 31, aligning with ODOT’s winter traction standards.
- Stud Specifications: Maximum stud protrusion of 1/16 inch (1.6 mm) above the tire tread, verified via ODOT-approved testing methods.
- Weight Limits: Studded tires must not exceed 500 grams of combined stud weight per tire, per federal motor vehicle safety standards.
ODOT’s 2026 compliance framework introduces mandatory annual inspections for commercial fleets using studded tires, with penalties for non-compliance including fines up to $500 per violation. Local jurisdictions may impose additional restrictions during extreme weather events, requiring real-time adherence to ODOT’s Chain Law protocols. Non-residents must comply with Oregon’s regulations when operating within state borders, as enforced by the Oregon State Police.