The next time you see a Washington State Patrol trooper, a tow truck driver or a Department of Transportation vehicle working on the side of the road, move to the right.

It's the law to move over to the next lane ... if you can. That from Sgt. Paul Cagle of the Washington State Patrol, who says WSP is trying to educate drivers about the law during a new emphasis campaign.

"We stopped more than 4,000 cars for the violation in 2014," he says.

But Cagle insists it's not just about writing tickets. It's about education. Troopers are just hoping drivers will give them room to work on the side of the road. And he notes that the law applies to not only police and fire vehicles, but to tow trucks and Department of Transportation trucks.