Michigan Drivers Training Segment 1 Practice Test

No-passing zones are there specifically to prevent overtaking when visibility or road conditions make passing dangerous. When you’re in one of these zones, you must stay behind the vehicle in front and you may not move into the oncoming lane to pass. Turning across lanes, stopping in the roadway, or simply driving slowly are governed by other rules and situations, not the no-passing restriction, so they aren’t what this rule is about. So the action prohibited in a no-passing zone is passing another vehicle.