A new state law banning drivers from using the left lane unless they are passing will take effect on Nov. 1.
Highway signs reminding drivers to not impede the left lane are popping up across the state.
Under a bill passed in 2016, drivers will only be able to drive in the left lane to pass another vehicle.
Troopers said they called for the bill to help keep drivers safe and keep traffic flowing smoothly.
Violators could face a fine of up to $235.