(a) The members of the Los Angeles County Metropolitan Transportation Authority shall be appointed no later than February 1, 1993. The authority shall have no powers, duties, or responsibilities until February 1, 1993.
(b) From February 1, 1993, until April 1, 1993, the Los Angeles Metropolitan Transportation Authority, exclusively, may exercise any of the powers of the board of directors of the Southern California Rapid Transit District and the governing body of the Los Angeles County Transportation Commission, except those powers that the authority has expressly delegated to the district or to the commission.