11/18/2021
Must read!!!!!!
We get a lot of questions on what the different level of chain controls are in California during the winter season, so here is a little info to get you ready for the snow. R-1 and R-2 are the most common conditions. A highway will often be closed before an R-3 condition is imposed. Some local areas may use variations of these designations. 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. Also, DO NOT install chains on your vehicle in the middle of the road as there are designated spots to install them...
For more information on winter driving tips: https://dot.ca.gov/travel/winter-driving-tips