“ The functions vested in the President by Section 6 of the Special International Security Assistance Act of 1979 (22 U.S.C. 3404) are delegated to the Director.
" (g) The Director shall, as soon as possible after the Multinational Force and Observers becomes operational on April 25, 1982, phase-out the activities of the Mission in the Sinai and terminate all functions of the Mission not later than September 30, 1982. ”