“Commercial motor vehicle” means a motor vehicle or combination of motor vehicles and one or more vehicles that:
Has a gross combination weight rating or gross combination weight of 26,001 pounds or more, whichever is greater, inclusive of one or more towed units, with a gross vehicle weight rating or gross vehicle weight of more than 10,000 pounds, whichever is greater;
Has a gross vehicle weight rating or gross vehicle weight of 26,001 pounds or more;
Is designed to transport 16 or more persons, including the driver; or
Is of any size and is used in the transportation of hazardous materials.
Notwithstanding subsection (1) of this section, the term “commercial motor vehicle” does not include the following: