Cabs with Maryland or Virginia plates take passengers to the suburbs only and cannot pick up passengers for travel within Washington. Taxi fares can be obtained over the phone, and it is acceptable to ask the fare before boarding. Passengers might be asked to share rides with others. However, this practice does not reduce the fare. Some streets merge into circles.
Avenues create unexpected intersections.
Streets with letter names, such as M Street, run east and west. Streets with number names, such as 7th Street, run north and south. Avenues with state names run diagonally. Most D.C. car rental agencies require drivers to be at least 25. However, some make exceptions when renters have major credit cards.