This area includes the following counties:

District Of Columbia: District of Columbia; Maryland: Allegany, Calvert, Charles, Frederick, Montgomery, Prince Georges, Saint Marys, Washington; Pennsylvania: Franklin; Virginia: Alexandria City, Arlington, Clarke, Culpeper, Fairfax, Fairfax City, Falls Church City, Fauquier, Frederick, Fredericksburg City, King George, Loudoun, Manassas City, Manassas Park City, Page, Prince William, Rappahannock, Shenandoah, Spotsylvania, Stafford, Warren, Westmoreland, Winchester City; West Virginia: Berkeley, Hampshire, Hardy, Jefferson, Mineral, Morgan