Which system in a vehicle is responsible for controlling emissions?

The exhaust system is responsible for controlling emissions in a vehicle. This system plays a crucial role in directing exhaust gases away from the engine and into the atmosphere while also utilizing components designed to reduce harmful emissions. Key parts of the exhaust system, such as the catalytic converter, help to convert toxic gases produced during combustion into less harmful substances before they are expelled from the vehicle.

Effective emission control is essential not only for meeting environmental regulations but also for improving overall air quality. The exhaust system captures and treats pollutants, ensuring that the vehicle operates efficiently while minimizing its environmental impact.

In contrast, the braking system is focused on decelerating or stopping the vehicle, the transmission system manages the transfer of power from the engine to the wheels, and the cooling system regulates the engine temperature. None of these systems directly deal with emissions control, highlighting the specific role that the exhaust system plays in maintaining emission standards.