Okla. Stat. tit. 47, § 47-1-107.3: Class C commercial motor vehicle

Class C Commercial Motor Vehicle.

Any single vehicle or combination of vehicles, other than a

Class A or Class B vehicle as defined in this title, which is:

1. Required to be placarded for hazardous materials under 49

C.F.R., Part 172, subpart F; or

2. Designed by the manufacturer to transport sixteen or more

persons, including the driver.