Berkeley Lab’s main site has a perimeter fence with three vehicle entry/egress gates. The main entrance is at the Blackberry Gate (BBG). Secondary entrances are at Strawberry Gate (SG) and Grizzly Gate (GG). Access is controlled at the Laboratory gates by security personnel who visually inspect entering vehicles, checking for valid parking permits for the vehicles, checking to ensure passengers are in possession of an LBNL badge, and/or by inspection/swiping of a badge at the gate badge reader after LBNL business hours (between 5:00pm -8:00am, Monday through Friday), on weekends, and LBNL holidays. Visitors are checked on against the Daily Site Access Gate List or the Call Ahead List (for same day requests). After visitor verification is complete, visitors are signed in on a Visitor’s Log and issued a temporary parking permit.