Avoid DOT Fines: How Long Is a Tractor Trailer Truck? A State-by-State Guide
Key Dimensions and Regulations: Understanding the Variables The legal length of a tractor-trailer truck isn't uniform across the United States. While a typical semi-truck (tractor and 53-foot trailer) measures around 73 feet, state regulations significantly impact overall permissible length. Federal regulations mandate a minimum trailer length of 53 feet (since 1982), but the maximum overall length is primarily determined at the state level. This variation creates a complex regulatory landscape for trucking companies, drivers, and regulatory agencies....