What must a vehicle’s exhaust system be free from to pass inspection?

For a vehicle to pass inspection, its exhaust system must be free from excessive noise, rust and corrosion, and leaks. This is essential for several reasons.

Excess noise from the exhaust system can indicate malfunctioning parts or poor construction, which can both lead to performance issues and potentially be a nuisance to others. A well-functioning exhaust system should operate quietly within the manufacturer's specified noise levels.

Rust and corrosion can weaken the structural integrity of the exhaust components. If these issues are present, there is an increased risk of failure, which can lead to parts breaking off or allowing harmful gases to escape the system. This not only poses a risk to the vehicle's performance but can also be hazardous to occupants and the environment.

Leaks in the exhaust system can allow toxic gases like carbon monoxide to escape into the vehicle cabin, posing a serious health threat. Additionally, exhaust leaks can affect engine performance and fuel efficiency, leading to increased emissions and potential violations of environmental regulations.

Therefore, the requirement for the exhaust system to be free from these issues ensures the vehicle remains safe, efficient, and environmentally compliant, which justifies why all these factors are considered during inspection.