nopassing

Nopassing refers to a traffic regulation that prohibits overtaking other vehicles on a stretch of road where visibility or geometry makes passing dangerous. The rule is designed to reduce head-on collisions in places such as hills, curves, intersections, and confined roadways.

Communication: No-passing is typically conveyed through signs and pavement markings. In many jurisdictions on two-lane roads, a solid yellow centerline means no passing for traffic traveling in either direction. A dashed yellow centerline indicates that passing is allowed when safe. The end of a no-passing zone is often marked by a change to dashed lines or by an end-of-zone sign. Some regions also use signs that explicitly say “NO PASSING ZONE” or “NO PASSING” to warn approaching drivers before the restriction begins.

Rules vary: In some places, no-passing rules apply only when a solid line faces your direction; on roads with multiple lanes, other rules and signs govern overtaking, including when passing on the left is permitted.

Enforcement and safety: Violating a no-passing zone can result in fines, license points, or more serious charges if a crash occurs. The exact penalties depend on jurisdiction. No-passing zones are generally respected for safety, and drivers are advised to plan passes carefully, watch for oncoming traffic, and obey all posted signs and markings.