 D.C. is now handing out tickets to drivers who drive past school buses that have their stop arms out and flashing. About 25 D.C. public school buses are equipped with these stop arms. When buses stop to pick up or drop off students and the bus's red lights start to flash, a stop sign on the side of the bus swings out warning drivers to stop. That system also has video recording equipment to capture the license plate of any cars that drive past while that arm is deployed.