(1)  The President has the jurisdiction expressly conferred on him by this Act and, in the exercise of that jurisdiction, he constitutes the Commission and he has, and may exercise, such powers of the Commission as may be necessary or appropriate for that purpose.

(2)  A Commissioner, other than the President, sitting or acting alone, constitutes the Commission and, except as otherwise provided in this Act, he has, and may exercise, while so sitting or acting, all the powers and jurisdiction of the Commission.

(3)  Where more than one Commissioner is sitting or acting at the same time in the exercise of the jurisdiction of the Commission, each such Commissioner constitutes the Commission.