Slow-moving vehicles are prohibited from traveling on expressways or on roadways with a minimum posted speed limit greater than should use the lane of travel on divided highways.

Slow-moving vehicles are prohibited from traveling on expressways or on roadways with a minimum posted speed limit greater than 40mph, and should use the right lane of travel on divided highways.
As slow moving vehicles should use the right lane, fast moving vehicles should use the left lane.
Before start driving, we should learn all the guidelines and rules for this, to avoid any type of inconvenience.