THE NATIONAL SCIENCE FOUNDATION, 4201 Wilson Boulevard, is located in the Ballston area of North Arlington, Virginia, between Wilson Boulevard and Fairfax Drive, one block south of the Ballston-Marymount University Metro stop on the Orange Line.

Parking is available in the Ballston Common mall, in the NSF building, and at other area parking lots and garages. Metered parking is also available on the surrounding streets.

Visitors are asked to check at the NSF Reception and Information Conference Center on the first floor to receive a visitor pass, before going on to meetings, appointments, or other business at the NSF. Visitors bringing computers into NSF should consult the NSF Computer Security Policy before arriving. Computers will be scanned in  Room  357, third floor.