Rules of the Road Posted On February 3, 2015 Tweet Facebook Gmail Linked In Passing A driver must exercise caution when passing another vehicle, particularly if you are passing on a two-lane road. If you want to pass a car on a two-lane road, make sure that passing is permitted. Let’s look at the areas where drivers are not permitted to pass on a two-lane, two-way road. You may not pass a car if you have a solid yellow line on your side of the center line. In the picture, the car on the right has a solid yellow line on its side of the center line. In this situation, the driver is not allowed to pass.