Pub. L. 84-757, tit. I, pt. 1, sec. 7

Sec. 7. The Corporation shall be obligated to initiate and carry out a plan of gradual conversion of its street railway operations to bus operations within seven years from the date of the enactment of this Act upon terms and conditions prescribed by the Commission, with such regard as is reasonably possible when appropriate to the highway development plans of the District of Columbia and the economies implicit in coordinating the Corporation’s track removal program with such plans; except that upon good and sufficient cause shown the Commission may in its discretion extend beyond seven years, the period for carrying out such conversion. All of the provisions of the full paragraph of the District of Columbia Appropriation Act, 1942 (55 Stat. 499, 533), under the title “Highway Fund, Gasoline Tax and Motor Vehicle Fees”, subtitle “street improvements”, relating to the removal of abandoned tracks, regrating of track areas, and paving abandoned track areas, shall be applicable to the Corporation.