Are tire chains legal in the U.S.? The answer depends on your state. Rules change based on location, vehicle, and weather. Some places, like California, demand chains on highways. Think of I-80 during heavy snow. Colorado also requires them on I-70 in bad weather. Ignore this, and fines hit hard—up to $500 in Colorado! Other states, like Florida, ban chains completely. Why? Their warm weather makes chains useless. Check your local laws to stay safe. Curious about proper use? Dig deeper for tips on safety.