When are you permitted to pass on the right?

You are permitted to pass on the right when the vehicle in front is making a left turn and there is a clear lane available. This maneuver is legal because it allows drivers to proceed safely around a vehicle that is preparing to turn left, assuming that there is adequate space to do so without encroaching into oncoming traffic or causing a hazard.

This rule is designed to facilitate smoother traffic flow and ensure that vehicles can continue moving without unnecessary delays. It's important for drivers to be aware of their surroundings and ensure that the right lane is clear before attempting this maneuver.

In contrast, the other options refer to scenarios that do not legally justify passing on the right. For instance, passing simply to go faster than the car in front is not permissible as it does not consider safety or traffic laws. Additionally, passing on highways is more restricted as highway conditions can vary significantly and require careful consideration of speed and lane use. Lastly, the absence of oncoming traffic does not provide an automatic right to pass on the right without the specific context of another vehicle turning left.