Under what conditions is it illegal to pass another vehicle?

Passing another vehicle is illegal in a no-passing zone and when visibility is limited because these conditions present significant safety risks. No-passing zones are specific areas marked on the road where it is unsafe to attempt to overtake another vehicle, typically due to a lack of visibility caused by curves, hills, or other obstructions. When visibility is limited, whether due to the road design or environmental factors like fog, rain, or snow, you cannot accurately judge the distance and speed of oncoming traffic. Attempting to pass under these circumstances can lead to dangerous collisions. Adhering to these regulations ensures that drivers prioritize safety and the well-being of all road users.