6. When should you return to the right lane after passing another car on the left?

You should turn to the right lane after passing another car on the left when you see both its headlights in your rear view mirror.

In the wake of passing another auto on the left, before you come back to the correct path you should ensure that you see the headlights of the auto you go in the rear view reflect. You should look quickly behind your privilege shoulder to the back side window.

But take care that the street or road is that much wide to accommodate two lanes of traffic.

After passing another car on the left, before you return to the right lane you should make sure that you see the headlights of the car you passed in the rearview mirror. You should look briefly behind your right shoulder to the rear side window and if there is no vehicle close to you, you should signal for 4 seconds and then return to the lane.