When is it permissible to drive in the left lane of a highway?

Driving in the left lane of a highway is primarily intended for overtaking or passing other vehicles. It is designed to facilitate the smoother flow of traffic by allowing faster-moving vehicles to maneuver around slower ones. When you are passing another vehicle, it is appropriate and permissible to occupy the left lane to ensure that you can complete the maneuver safely and efficiently.

In situations where the highway is clear of traffic, it may be tempting to occupy the left lane; however, it is important to remember that the left lane should generally be reserved for passing. Using it when not passing can lead to unnecessary lane changes and disrupt the intended use of the lanes. Similarly, driving in the left lane only during emergencies may suggest a more significant infraction, as it does not align with standard driving protocols. Lastly, being the last vehicle in a line does not provide a valid reason to stay in the left lane, as that lane is intended for those actively passing and not for merely following behind others.