Top right hand corner of the windshield, or just tell the people at the time slip stand your veh. number.Your vehicle we be turned off and waiting before you get to the timem slip booth. Pick it up on the way down. Make sure you have a working CB (not a hand held) in case we need to contact you when comong after your bike/car. Also all vehicles need to be towed back. no vehicles are to be driven or ridden back to the pits.