You've known that you should slow down and move over when passing by emergency vehicles, but now authorities are strictly enforcing the "Slow Down, Move Over" law.

It requires drivers to move to the lanes away from DPS, Police, TxDOT and towing vehicles with flashing lights.

It's another day on the job for John Hutson, who works for S.W.A.T. Towing and Recovery out of Groves.

For these tow truck workers, it's a scary situation along Highway 69 South in Port Arthur.

"it's very dangerous," Hutson says.

"We're trying to do our job when someone is flying past you, any little slip can be a catastrophe," he explains.

Hutson has been a tow truck driver for over 30 years, and says every day thousands of drivers disrespect the "Slow Down Move Over" law.

"When you get a call saying your driver has been hit in an accident, it will send you chills," Hutson says.

This hits close to home for his co-workers at the towing company based in Groves.

This has torn Jeremy [owner] up from the inside for many years, it still does," Hutson says.

In July of 2015, 35-year-old Frank Amerson of Nederland was killed by a driver who violated the "Slow Down Move Over' law.

"It was a pretty hard drive getting to the exit where he was at," says Jeremy Squiers, owner of S.W.A.T. Towing and Recovery.

Investigators say a driver plowed into Amerson's tow truck, where he was working another accident.

"Have those unfortunate incidents unfold, he would have still been here at this time," Squiers says, teary eyed.

With every car that speeds along the side of them, It's a reminder of the tragic death of their colleague by something that could have easily been prevented.

"It saddens me because all they had to do is slow down and move over," says Hutson.

The move over law started in 2013 and It requires drivers to move out of the lane closest to the stopped vehicle, and slow down.

Violators caught in the act can be fined up to $2,000 dollars and even face jail time.