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Chp quickmap install#

Tire traction devices shall be constructed and assembled to provide sufficient structural integrity and to prevent accidental detachment from vehicles. Snow-tread tires can be identified by examining the sidewall of the tire where the letters MS, M/S, M+S or the words MUD AND SNOW have been stamped into the sidewall.Ģ Tire Traction Devices: The California Vehicle Code, Section 605 defines tire traction devices as follows: "Tire Traction Devices are devices or mechanisms having a composition and design capable of improving vehicle traction, braking and cornering ability upon snow or ice-covered surfaces. You must follow the directions on the signs posted for chain controls or any instructions given by Caltrans or CHP personnel at chain control check points, even if these are at variance with broadcast road condition reports or information contained herein.ġ Snow-tread Tires: The California Vehicle Code, Section 558 defines a snow-tread tire as follows, "A 'Snow-tread tire' is a tire which has a relatively deep and aggressive tread pattern compared with conventional passenger tread pattern". Some local areas may use variations of these designations. A highway will often be closed before an R-3 condition is imposed. R-1 and R-2 are the most common conditions. Truckers, see our Truck Chain Requirements page.

Requirement 3 (R3): Chains or traction devices are required on all vehicles, no exceptions.

NOTE: (Four-wheel/all-wheel drive vehicles must carry traction devices in chain control areas.)

Requirement 2 (R2): Chains or traction devices are required on all vehicles except four-wheel/all-wheel drive vehicles with snow-tread tires on all four wheels.

Trailers with brakes must have chains on at least one axle. All vehicles towing trailers must have chains on one drive axle. Chains must be carried by vehicles using snow tires.

Requirement 1 (R-1): Chains are required on all vehicles except passenger vehicles and light-duty trucks under 6,000 pounds gross weight and equipped with snow tires on at least two drive wheels.

There are Three Levels of Chain Requirements in California:

When chain controls are established, signs will be posted along the road indicating the type of requirement. Chain Requirement Levelsĭuring the winter months, motorists may encounter traction chain controls in the mountain areas within California. It is best to check your vehicle manufacturer's specifications for use of tire chains/traction devices.Ĭhain Installation Chart (PDF) depicting the proper placement of traction devices for all vehicles. The California Department of Transportation (Caltrans) does not sell nor recommend specific brands of tire chains.

When removing chains, drive beyond the signs reading "End of Chain Control" to a pull-off area where you can safely remove them.

Chain installers are NOT allowed to sell or rent chains. Having the badge number may help with any misunderstandings later. Remember, chain installers are independent business people, not Caltrans employees.

Chain Installers: If you use the services of a chain installer, be sure to get a receipt and jot the installer's badge number on it.

Do not stop in a traffic lane where you will endanger yourself and block traffic.

When you put on chains, wait until you can pull completely off the roadway to the right.

The speed limit when chains are required is 25 or 30 miles an hour.

Control areas can change rapidly from place to place because of changing weather and road conditions.

Chp quickmap install#

You will usually have about a mile between "Chains Required" signs and the checkpoint to install your chains. You can be cited by the California Highway Patrol and fined if you don't.

You must stop and put on chains when highway signs indicate chains are required. Before driving, check with the Caltrans Highway Information Network (CHIN): 80 and Caltrans Quickmap.