Designates the portion of the U.S. Courthouse located at 2100 Jamieson Avenue in Alexandria, Virginia, (commonly known as the Albert V. Bryan United States Courthouse) that is attached to the courthouse main tower structure, described as "A-Wing" in the architectural plans, and currently occupied by the Office of the U.S. Attorney for the Eastern District of Virginia, Alexandria Division, as the Justin W. Williams United States Attorney's Building.