In which situation is passing on the right not permitted?

Passing on the right is not permitted when driving in a lane set aside for left turns because these lanes are designated specifically for vehicles preparing to make a left turn and are not intended for through traffic. When vehicles enter this lane, they are typically anticipating a turn, and other drivers should not attempt to pass them on the right. This helps maintain safety, as passing in this area could lead to dangerous situations where the passing driver may encounter unexpected stops or movements from vehicles turning left.

In contrast, passing on the right can be lawful in scenarios such as on multi-lane highways or when overtaking slow-moving vehicles, as these conditions generally allow for safe maneuvering around slower traffic. Similarly, when vehicles are stopped at an intersection, passing on the right could be permissible depending on local traffic laws and the layout of the intersection.