The National Motorists Association has launched a publicity campaign for this June, called "Lane Courtesy Month," to urge drivers not to block the left lane. Lane courtesy is keeping clear of the left lane unless passing slower-moving vehicles to create smoother traffic flow on multilane roads and highways. Many states have "keep right" laws, which make it an infraction to block the passing lane--regardless of whether you are driving the speed limit.
[Source:
Autoweek]
