District of Columbia Tire Chain Laws

How District of Columbia handles chains

DC has no chain-up law for trucks. From October 15 to April 15, while snow, sleet, or freezing rain is falling anywhere in the District, or snow or ice covers a marked Snow Emergency Route, you may not let your vehicle stall on such a route for want of tire chains or effective snow tires (18 DCMR 2219). Snow tires satisfy it, so chains are never forced. No R-1/R-2 sign turns a chain order on. Operating without effective snow tires or chains runs $100, a snow emergency violation $250. Check snow.dc.gov.

When, where, and what counts

• When required: Chains are never required. DC runs no standing chain-up mandate for trucks. From October 15 to April 15, while snow, sleet, or freezing rain is falling anywhere in the District, or while snow, sleet, or ice covers a marked Snow Emergency Route, you may not let your vehicle stall on a marked Snow Emergency Route for want of tire chains or effective snow tires on its driving wheels (18 DCMR 2219.1). Snow tires satisfy it, so chains are never forced. You can't run chains whenever you like, though. DC allows tire chains of reasonable proportions on any street, in any month, only when snow, ice, or skid conditions make them needed for safety (18 DCMR 732.5(b)). Outside that, 18 DCMR 732.4 bars any non-rubber protuberance beyond the tread, so chains on dry pavement are not allowed.
• Where: The stall rule reaches every street marked as a Snow Emergency Route. The list in 18 DCMR 4024.1 includes arterials and bridges plus the Interstates and freeways you use through DC: I-66 (DC line to Whitehurst Freeway and ramps), I-295 (DC line to and across both 11th Street Bridges to the Southeast Freeway), I-395 (DC line to New York Avenue, HOV lanes included), the Anacostia, Southeast, and Southwest Freeways, Whitehurst Freeway, Suitland Parkway (South Capitol Street to Southern Avenue), and New York Avenue (15th Street NW to the DC line). snow.dc.gov describes Snow Emergency Routes as the District's larger commercial streets, generally the rush hour streets. There is no chain duty on other streets and no pass-based chain zone.
• Applies to: The stall rule reaches all motor vehicles on a marked Snow Emergency Route. No weight threshold and no truck-specific chain mandate. Cars and CMVs are treated alike.
• Chains vs traction devices: Tire chains or effective snow tires satisfy 18 DCMR 2219. Snow tires are an accepted substitute, so there is no chain-only rule for heavy trucks. No DC regulation names cable chains, textile socks, AutoSock, or other alternative traction devices. 18 DCMR 732.5 permits tire chains of reasonable proportions when snow, ice, or skid conditions make them needed for safety, and pneumatic tires with metal studs from October 15 through April 15. Otherwise 18 DCMR 732.4 bars non-rubber protuberances beyond the tread, so DC's rules leave the status of other devices unsettled.
• Check the live order: Check snow.dc.gov for declared Snow Emergencies and lifting notices. Sign up for AlertDC (alertdc.dc.gov, run by DC HSEMA), the District's official emergency notification system, for Severe Weather, Transportation Incidents, and Traffic Advisories alerts. Snow Emergency Routes are a fixed list (18 DCMR 4024.1) shown on DDOT's Snow Emergency Route Map PDF. No live per-route status feed exists, and a declared emergency covers all of them.
• Fine: $100 for operating without effective snow tires or chains (18 DCMR 2219.1; DC civil fine schedule, 18 DCMR 2600). A snow emergency regulations violation runs $250. An unsafe tire violation under 18 DCMR 732, such as chains on dry pavement, is also $100. Parking on a route during a declared emergency draws a ticket plus a tow.

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