Title: National Radio Astronomy Observatory
Content:  The NRAO headquarters is located on the campus of the University of Virginia in Charlottesville, Virginia. The North American ALMA Science Center and the NRAO Technology Center and Central Development Laboratory are also in Charlottesville.
Title: National Reconnaissance Office
Content:  The NRO is headquartered in Chantilly, Virginia, 2 mi south of the Washington Dulles International Airport. The Director of the NRO reports to both the Director of National Intelligence and the Secretary of Defense. The NRO's federal workforce is a hybrid organization consisting of some 3000 personnel including NRO cadre, Air Force, Army, CIA, NGA, NSA, Navy and US Space Force  personnel. A 1996 bipartisan commission report described the NRO as having by far the largest budget of any intelligence agency, and "virtually no federal workforce", accomplishing most of its work through "tens of thousands" of defense contractor personnel.
Title: Uganda National Roads Authority
Content:  The headquarters of UNRA are located in the UAP Nakawa Business Park, at 3-5 New Port Bell Road, in the Nakawa Division of Kampala, Uganda's capital and largest city. The geographical coordinates of UNRA's headquarters are:0°19'40.0"N, 32°36'46.0"E (Longitude:0.327778; Latitude:32.612778).
Title: National Identification and Registration Authority
Content:  The headquarters of the NIRA are temporarily located at Independence Park, Kololo Airstrip, on Kololo Hill, in Kampala, Uganda's capital city. The coordinates of Kololo Airstrip are 0°19'37.0"N, 32°35'34.0"E (Latitude:0.326955; Longitude:32.592787).
Title: United States Naval Research Laboratory
Content:  and the Extreme-Ultraviolet and X-Ray Calibration Facility at the National Synchrotron Light Source at the Brookhaven National Laboratory.  The main campus of NRL is in Washington, D.C., near the southernmost part of the District. It is on the Potomac River and is immediately south of (but is not part of) Joint Base Anacostia-Bolling. This campus is immediately north of the Blue Plains site of the DC Water Authority. Exit 1 of northbound I-295 leads directly to Overlook Avenue and the NRL Main Gate. The U.S. Postal Service operates a post office on the NRL main campus. In addition, NRL operates several field sites and satellite facilities: 
Title: National Drug Authority
Content:  The headquarters of the NDA was located at 46-48 Lumumba Avenue but has moved to Rummee Towers, in Kampala Central Division, on Nakasero Hill, in the central business district of Kampala, the capital and largest city of Uganda. The coordinates of the head office are 0°19'36.0"N, 32°34'32.0"E (Latitude:0.326667; Longitude:32.575556). NDA maintains regional offices at the following locations: • # Nakawa - Central Uganda • # Mbarara - Southwestern Uganda • # Jinja - Southeastern Uganda • # Tororo - Eastern Uganda • # Hoima - Western Uganda • # Lira - Northern Uganda • # Arua - West Nile The agency works in collaboration with the Uganda Ministry of Health and the Uganda Ministry of Agriculture, Animal Industry and Fisheries.
Title: Associated Universities, Inc.
Content:  The National Radio Astronomy Observatory (NRAO), headquartered in Charlottesville, VA, is a Federally Funded Research and Development Center (FFRDC) operated by Associated Universities, Inc. under cooperative agreement with the United States National Science Foundation. NRAO designs, builds, and operates high sensitivity radio telescopes for use by scientists around the world. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media. NRAO's facilities are discussed below.
Title: National Institute of Statistics of Rwanda
Content:  The headquarters of NISR are located on KN2 Avenue, in the Nyarugenge neighborhood of the city of Kigali, Rwanda's capital city. The coordinates of the agency's headquarters are 01°56'29.0"S, 30°03'26.0"E (Latitude:-1.941384; Longitude:30.057225).
Title: National Radio Astronomy Observatory
Content:  The National Radio Astronomy Observatory (NRAO) is a federally funded research and development center of the United States National Science Foundation operated under cooperative agreement by Associated Universities, Inc for the purpose of radio astronomy. NRAO designs, builds, and operates its own high-sensitivity radio telescopes for use by scientists around the world.
Title: National Institute of Animal Welfare
Content:  NIAW has its headquarters on an 8-acre campus in Ballabhgarh.

Question: where is the nra headquarters located?
Answer: Fairfax.