Okla. Stat. tit. 17, § 17-116.3: Rules and regulations establishing minimum standards

The Commission shall make and enforce reasonable rules and

regulations relating to motor vehicles used to transport workers to

and from their places of employment or during the course of their

employment. These rules and regulations shall establish minimum

standards:

(1) For the construction and mechanical equipment of a motor

vehicle, including its coupling devices, lighting devices and

reflectors, motor exhaust system, rear-vision mirrors, service and

parking brakes, steering mechanism, tires, warning and signaling

devices and windshield wipers.

(2) For the transportation of gasoline and explosives.

(3) For the safety of passengers in a motor vehicle, including

emergency exits, fire extinguishers, first-aid kits, means of

ingress and egress, side walls and a tailgate or other means of

retaining freight and passengers within the motor vehicle.