Idaho Written Driver's License Practice Test

A solid yellow line on your side of a two-lane, two-way road indicates that passing is not permitted. This is a critical safety rule designed to prevent accidents by helping drivers understand that visibility may be limited or that there is potentially dangerous oncoming traffic. The solid line serves as a clear warning to drivers that they should not cross into the opposing lane to overtake another vehicle. Therefore, when you see a solid yellow line in your lane, it is not legally permissible to pass, regardless of whether the other lane seems clear or if it’s daytime, or if the speed limit allows for it. Understanding this rule is essential for maintaining safety and adherence to traffic laws.