Including gross vehicle weight in the definitions for classes of commercial motor vehicles for drivers' license purposes and modifying the definition of commercial motor vehicle and creating a definition of air mile and gross vehicle weight in the Kansas uniform commercial drivers' license act.

HB 2604 updates Kansas' commercial driver's license (CDL) rules by clarifying how vehicle weight determines license classes. It adds "gross vehicle weight" (the total weight of a vehicle plus its load) to the definitions for classifying commercial vehicles, replacing ambiguous references to "weight rating." This directly affects commercial drivers and licensing officials who must now use actual loaded weight - rather than manufacturer specifications - to assign CDL classes (A, B, or C). The bill creates clear definitions for "gross vehicle weight" and "air mile" to standardize these classifications under Kansas law.