What is the purpose of tire chains on snow-covered roads for Class B vehicles, and when are they required?

• A. To improve traction; required when posted or when conditions require; install as directed by authorities.
• B. They are decorative and have no safety function.
• C. They should be installed only on front tires.
• D. They should never be used on snow-covered roads.

Answer: (A)

On snow-covered roads, traction is significantly reduced. Tire chains provide extra grip by biting into snow and ice, which helps your Class B vehicle accelerate, brake, and steer more safely. They are not decorative; their safety function is essential in winter conditions. Use them whenever road signs require chains or when the weather and road conditions make chains necessary for safe travel. Install them exactly as directed by authorities or the chain manufacturer, including which wheels to mount them on and how to tension them. You should carry chains and follow any chain-control requirements, removing them when directed or when conditions no longer warrant them. They shouldn’t be used on dry pavement, and the idea of installing only on front tires or never using them on snow isn’t correct because proper use depends on the vehicle and the specific situation.