The driver of a vehicle must not drive while allowing a passenger to ride in a place not meant to carry a passenger, and must not drive while carrying a load in a place not meant to carry a passenger or a load; provided, however, that, in a motor vehicle built exclusively to transport cargo (hereinafter referred to in the following Article and Article 57 as a "truck") which is carrying cargo, the driver may drive while allowing the minimum number of personnel necessary to guard the cargo to ride on the loading platform.
The driver of a vehicle must not drive while allowing a person to ride or carrying a load in a way that could obstruct the driver's field of vision, the steering wheel, or the operation of other instruments, or diminish the effectiveness of the rearview mirrors, harm the stability of the vehicle, or obscure the vehicle's turn signals, license plates, brake lights, taillights, or rear reflectors when viewed from the outside of the vehicle.