When should you not pass another vehicle?

Passing another vehicle is prohibited when there is a NO PASSING sign because these signs are placed in areas where visibility is limited or where it would be unsafe to pass, such as near curves or intersections. Adhering to these signs is crucial for road safety as they are designed to prevent accidents that could occur if a driver were to attempt to pass inappropriately. Safety regulations and road signs guide drivers on when and where it is safe to maneuver their vehicles, and ignoring these signs can result in dangerous situations for both the driver and other road users. Consequently, respecting NO PASSING signs is essential to maintain safe traveling conditions.