Don't hang out in a No-Zone! No-Zones are large areas around trucks and other large vehicles in which cars may disappear into blind spots or get so close that they restrict the truck driver's ability to stop or maneuver safely. The larger the vehicle, the larger its No-Zones. No-Zones greatly increase the likelihood of a crash. It is impossible to always avoid a large vehicle's No-Zones. However, don't remain in its No-Zones any longer than absolutely necessary. And never tailgate a truck.