Mandatory Winter Tire and Chain Requirements are extended to April 30 on Select Highways

This year, mandatory winter tire and chain requirements are extended to April 30 on select highways, including mountain passes and rural routes in high snowfall areas.

Which routes, exactly? Well, we’ve got a trio of handy maps for that, one for each region. Here’s the Southern Interior. Collect them all by visiting our Designated Winter Tire & Chain-up Routes webpage.