What is the definition of a commercial motor vehicle (CMV)?

A commercial motor vehicle (CMV) is defined primarily by its gross vehicle weight rating and the nature of its use. A vehicle that has a gross weight over 26,001 pounds is classified as a CMV, making it subject to specific regulations and requirements set forth for commercial driving. This weight threshold is significant as it ensures that vehicles capable of carrying larger loads adhere to safety standards that protect both the driver and other road users.

Understanding this classification is important for drivers because it determines the licensing, inspections, and regulations that must be followed. The definition of a CMV also extends beyond just weight; vehicles designed to transport more than 15 passengers or carry hazardous materials also fit into this category, but the primary defining feature remains the gross weight over 26,001 pounds.