While it's still legal in a few states for drivers of passenger vehicles to text, federal law prohibits texting while driving for truck and bus drivers. (hullandchandler.com)
Like drivers of passenger vehicles, truck drivers can be distracted by such things as cell phones or excessive fatigue. (zebpersonalinjurylawyer.com)
One reason may be that U.S. drivers of passenger vehicles frequently turn off lane departure warning. (iihs.org)