OCTOBER TERM, 1975 Per Curiam 424 U. S. adverted we hold that appellants' claims as they bear upon the method of appointment of the Commission's members may be presently adjudicated. B. The Merits Appellants urge that since Congress has given the Commission wide-ranging rulemaking and enforcement powers with respect to the substantive provisions of the Act, Congress is precluded under the principle of separation of powers from vesting in itself the authority to appoint those who will exercise such authority. Their argument is based on the language of Art. II, § 2, cl. 2, of the Constitution, which provides in pertinent part as follows: "[The President] shall nominate, and by and with the Advice and Consent of the Senate, shall appoint . . . all other Officers of the United States, whose Appointments are not herein otherwise provided for, and which shall be established by Law: but the Congress may by Law vest the Appointment of such inferior Officers, as they think proper, in the President alone, in the Courts of Law, or in the Heads of Departments." Appellants' argument is that this provision is the exclusive method by which those charged with executing the laws of the United States may be chosen. Congress, they assert, cannot have it both ways. If the Legislature wishes the Commission to exercise all of the conferred powers, then its members are in fact "Officers of the United States" and must be appointed under the Appointments Clause. But if Congress insists upon retaining the power to appoint, then the members of the Commission may not discharge those many functions of the Commission which can be performed only by "Officers of