May a car be driven if it emits more exhaust smoke than is permitted?
Traffic safety: Rules for the safety of people and cargo, and their identifiers
Explanation
A car that emits more smoke than allowed cannot circulate because it **pollutes the environment**. Vehicles emit **toxic gases** that affect air quality, and it is important to take measures to reduce this pollution. One of the recommendations is to **check the engine frequently** to prevent it from emitting clouds of smoke. Additionally, vehicles are equipped with a **catalyst** in the exhaust pipe, which helps reduce pollution. If a vehicle emits more smoke than allowed, it means it is not functioning properly and is polluting more than acceptable. Therefore, its circulation is not permitted.
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