 Breakdown cover may include jump-starting an automobile, diagnosing and repairing the problem that caused the breakdown, towing a vehicle, helping to change a flat tire, providing a small amount of fuel when a vehicle runs out of it, pulling out a vehicle that is stuck in snow or helping people who are locked out of their cars.In the United States, many states and their departments of transportation have organized government-run highway assistance patrols, or highway safety patrols, to keep the traffic moving and assist with highway emergencies as needed.While not law enforcement personnel, these persons provide free service to motorists in distress, and secure lanes of traffic, provide emergency medical assistance, request tow trucks for vehicles in inconvenient or dangerous locations, remove debris from the roadway after a crash, and resolve minor disabled vehicle problems, such as flat tires, jumpstarts, or pushing a disabled vehicle out of travel lanes.