It is roughly 15 minutes by car or subway. They have free access busses that will take you across the street to the subway. Providing information and services to Washington National Airport and Washington Dulles International Airport. You must have a military or government ID to enter the building, or you must have someone in the building meet you at the guard desk and sign in for you. You must immediately put that authorization card in your car windshield.
Officers are to reenter the building and go directly to their assignment manager.
If you do not have a pass, there is a free phone at the entrance for calls within the Hoffman buildings. They may contact, or help you contact, the office or person you wish to visit. The office or person to be visited will be required to come to the guard desk, sign you in and escort you.