Yes, studded tires are legal in Maine from October 1 to April 30, but only under strict state and municipal restrictions. The Maine Department of Transportation (MaineDOT) permits their use during winter months to enhance traction on icy roads, while local ordinances in municipalities like Bangor and Portland may impose additional seasonal or vehicle-specific limitations.
Key Regulations for Studded Tires in Maine
- Seasonal Window: Operation is restricted to October 1–April 30, aligning with MaineDOT’s winter traction policy to balance safety and road preservation.
- Stud Specifications: Tires must comply with federal standards (49 CFR § 571.109), limiting stud protrusion to 1/16 inch (1.5 mm) to minimize pavement damage.
- Local Variations: Cities such as Portland may require permits or prohibit studs on certain vehicle classes (e.g., commercial trucks) via municipal traffic codes.
MaineDOT’s 2026 compliance framework introduces mandatory reporting for commercial fleets using studded tires, with penalties for violations including fines up to $500 per infraction. The Maine Bureau of Motor Vehicles (BMV) enforces these rules through routine inspections, particularly in high-traffic corridors like I-95. Drivers should verify local ordinances, as some towns (e.g., Bar Harbor) impose stricter seasonal limits or outright bans. Non-compliance risks liability in accident investigations, as studded tires may be deemed negligent if used outside permitted periods.