When should you not pass on a two-lane road?

The presence of a solid yellow line indicates that passing is not permitted in that direction. This marking is specifically designed to alert drivers that it is unsafe to overtake another vehicle because of restricted visibility or potential hazards in the road ahead. The solid line communicates that passing would be unsafe due to oncoming traffic or other dangers that might arise.

While there are circumstances where passing might be acceptable, such as when there is a broken yellow line or clear visibility in the other lane, the solid yellow line serves as a clear and direct legal restriction against passing. Additionally, the context of road conditions, such as proximity to intersections, would also warrant caution but does not negate the absolute prohibition imposed by a solid yellow line.