Truck drivers braving Colorado’s steep grades must adhere to the Colorado truck citations I-70 chain law to ensure safe passage through mountain corridors. This law is strictly enforced during winter storms, especially near Eisenhower Tunnel and Vail Pass. Commercial vehicles over 26,000 lbs must carry chains at all times during the chain law season and install them when required. Failure to do so can result in fines exceeding $1,000. Besides avoiding citations, using chains helps maintain traction, reduce skidding, and keep freight moving during blizzards. Compliance with the Colorado truck citations I-70 chain law protects truckers from accidents and costly downtime—making it a key factor in safe, efficient winter operations.