What is chain up?

Chain up is a term used in the trucking industry to refer to the process of installing tire chains on a truck's tires to provide better traction and stability on icy or snowy roads. The chains are typically made of steel and designed to fit around the tire treads, creating a rough surface that can grip the road more effectively. Chain up is usually required by law in certain states or provinces during winter months or in mountainous areas with steep grades. Truck drivers must carry tire chains with them and be prepared to chain up when necessary to ensure safe driving conditions and avoid accidents. Failing to chain up when required can result in fines, penalties, or even suspension of a truck driver's license.