The National Science Foundation
4201 Wilson Boulevard, Arlington, VA 22230
Stafford II, Room 555
Main entrance: corner of 9th and Stuart Streets
Metro: Ballston-Marymount University Metro stop on the Orange Line
Parking: Ballston Common mall, NSF building, and other area parking lots and garages. Metered parking is also available on the surrounding streets.
Please check in at the Visitor and Reception Center on the first floor to receive a visitor pass. Visitors bringing computers into NSF should consult the NSF Computer Security Policy before arriving.
NSF asks visitors with special needs to request necessary accommodations in advance of their arrival.