You will NOT need to register in at the security desk. The NSF building is located a few blocks from Route 66 and Route 50, pproximately three miles from downtown Washington, D.C. and is easily accessible from many points of arrival and departure from within the metropolitan D.C. area. 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.