What happens if the tailpipe discharges exhaust towards the passenger compartment?

If the tailpipe discharges exhaust towards the passenger compartment, it is a serious safety concern. The focus is on protecting the health and safety of the vehicle occupants. Exhaust fumes can contain harmful substances such as carbon monoxide, which poses significant risks if they enter the cab of the vehicle.

Given these health implications, if the exhaust system is improperly routed or leaking and directs exhaust towards the passenger area, it fails to meet emission standards and safety regulations. Therefore, the vehicle will not pass inspection. Ensuring that exhaust is directed safely away from the passenger compartment is a critical element of vehicle design and regulatory compliance, reflecting a commitment to occupant safety. Thus, the appropriate response in this scenario is to reject the vehicle during inspection until the issue is rectified.