Pub. L. 84-757, tit. I, pt. 1, sec. 4

Sec. 4. It is hereby declared as a matter of legislative policy that in order to assure the Washington Metropolitan Area of an adequate transportation system operating as a private enterprise, the Corporation, in accordance with standards and rules prescribed by the Commission, should be afforded the opportunity of earning such return as to make the Corporation an attractive investment to private investors. As an incident thereto the Congress finds that the opportunity to earn a return of at least 6½ per centum net after all taxes properly chargeable to transportation operations, including but not limited to income 70 Stat. 599taxes, on either the system rate base or on gross operating revenues would not be unreasonable, and that the Commission should encourage and facilitate the shifting to such gross operating revenue base as promptly as possible and as conditions warrant; and if conditions warrant not later than August 15, 1958. It is further declared as a matter of legislative policy that if the Corporation does provide the Washington Metropolitan Area with a good public transportation system, with reasonable rates, the Congress will maintain a continuing interest in the welfare of the Corporation and its investors.