CHP Enforces Chain Requirements for Mountain Travel

Drivers must carry tire chains as CHP enforces R2 chain rules after recent winter storm.

Published on Mar. 2, 2026

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The California Highway Patrol (CHP) is enforcing R2 chain requirements for drivers heading to local mountain communities following a recent winter storm. Motorists must carry tire chains as they travel to areas like Mountain Center and Garner Valley.

Why it matters

Mountain roads can become treacherous after heavy snowfall, making tire chains a critical safety requirement. The CHP's enforcement helps ensure drivers are prepared for winter driving conditions and reduces the risk of accidents or getting stranded.

The details

The R2 chain requirements mean all vehicles, except four-wheel/all-wheel drive vehicles with snow-tread tires, must have chains or cables installed on their tires when traveling in the affected mountain areas. The CHP is monitoring roads and pulling over any vehicles that do not have the proper equipment.

  • The CHP began enforcing the R2 chain requirements on February 20, 2026 following a recent winter storm.

The players

California Highway Patrol

The state law enforcement agency responsible for patrolling California's highways and enforcing traffic laws, including chain requirements during winter weather.

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The takeaway

Drivers heading to mountain areas must be prepared with tire chains or cables to ensure safe travel during winter conditions. The CHP's enforcement of chain requirements helps keep roads passable and prevents drivers from getting stranded or causing accidents.