(a) The department may issue a Class A, Class B, or Class C commercial driver's license or commercial learner's permit.
(b) Class A covers a combination of vehicles with a gross combination weight rating of 26,001 pounds or more, if the gross vehicle weight rating of the towed vehicle or vehicles exceeds 10,000 pounds.
(c) Class B covers:
(1) a single vehicle with a gross vehicle weight rating of 26,001 pounds or more;
(2) a single vehicle with a gross vehicle weight rating of 26,001 pounds or more towing a vehicle with a gross vehicle weight rating of 10,000 pounds or less; and
(3) a vehicle designed to transport 24 passengers or more, including the driver.
(d) Class C covers a single vehicle or combination of vehicles not described by Subsection (b) or (c) that is:
(1) designed to transport 16-23 passengers, including the driver; or
(2) used in the transportation of hazardous materials that require the vehicle to be placarded under 49 C.F.R. Part 172, Subpart F.
(e) The holder of a commercial driver's license or commercial learner's permit may drive any vehicle in the class for which the license or permit is issued and lesser classes of vehicles except a motorcycle. The holder may drive a motorcycle only if authorization to drive a motorcycle is shown on the commercial driver's license and the requirements for issuance of a motorcycle license have been met.