D.C. Code § 50-2624: Administrator of General Services to enforce regulations.

Nothing contained in this section and Chapter 24A of this title shall be construed to interfere with the charge and control committed to the Administrator of General Services over the public buildings and property of the United States in the District of Columbia or any other officer charged with the custody and control of property of the United States in the District of Columbia and such officers with respect to such property, under their respective jurisdiction and control, are hereby authorized and empowered to make and enforce all regulations for the parking of vehicles upon the property of the United States in the District of Columbia (other than public highways), to remove and impound any vehicle, parked, stored, or left in violation of this section and Chapter 24A of this title and to keep the same impounded until the owner thereof, or other duly authorized person, shall deposit collateral for his appearance in court to answer for such violation, the amount of collateral to be fixed by the officer charged with the custody and control of property of the United States in the District of Columbia in an amount not to exceed $25. Violations of regulations for the parking of cars upon the property of the United States in the District of Columbia shall be subject to the penalties prescribed in Chapter 24A of this title and all prosecutions for the violations thereof shall be upon information filed by the United States Attorney in the Superior Court of the District of Columbia.