Winter can often mean snow-covered and icy roadways. Experienced truckers realize that the lighter the load the less traction the tires get. But even vehicles hauling heavy a lot can lose footing in the snow and ice. This is exactly why many states can put chain rules into effect. Chain law requires truckers to put tire chains on their tires as a way to gain more traction. Generally when chains are important for trucks cars are also required to make use of chains or excellent skiing conditions...