Massachusetts Tire Chain Laws

How Massachusetts handles chains

Massachusetts has no standing chain-up law for trucks. Chains are permitted for safety in snow or ice, and studded tires are legal November 2 through April 30 (M.G.L. c. 90). No R-1/R-2 sign or posted pass turns a chain order on, because the state runs none. Trucking guides cite a tri-axle chain rule, but no primary statute backs it. In a declared snow emergency the state can order commercial vehicles off the road. Check Mass511.

When, where, and what counts

• When required: Chains stay optional. Massachusetts runs no standing chain-up mandate for trucks, no R-1/R-2 signs, and no posted-pass corridor. Chains are permitted for safety in snow or ice (M.G.L. c. 90). Trucking guides repeat a tri-axle chain rule, but no primary statute or regulation carries one, so treat chains as permitted, not required. In a declared snow emergency the state can order commercial vehicles off the roads.
• Where: No chain mandate anywhere. A declared snow-emergency travel order can clear commercial vehicles from any state road. For voluntary traction, the Berkshire grades on I-90 and US 20 are the worst.
• Applies to: No commercial vehicle is bound by a chain rule. Chains are optional for every class. A declared snow emergency can ban commercial vehicles from the roads, which is a travel ban, not a chain order.
• Chains vs traction devices: Link and cable chains are legal for safety. Studded tires are permitted November 2 through April 30 but satisfy no chain rule, because there is none. AutoSock and textile devices are not named in statute. Snow tires alone are lawful.
• Check the live order: Mass511 at mass511.com, or MassDOT, for snow-emergency travel orders and live winter status.
• Fine: None for a chain mandate, because no standing chain rule exists for trucks. A studded-tire violation runs about $50 (M.G.L. c. 90). A declared snow-emergency travel ban carries the penalties set by that order.

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