The United States shall be represented on the Commission by four United States Commissioners. The President shall appoint individuals to serve on the Commission. The United States Commissioners shall be subject to supervision and removal by the Secretary of State, in consultation with the Secretary. In making the appointments, the President shall select United States Commissioners from among individuals who are knowledgeable or experienced concerning highly migratory fish stocks in the eastern tropical Pacific Ocean, one of whom shall be an officer or employee of the Department of Commerce. Not more than two United States Commissioners may be appointed who reside in a State other than a State whose vessels maintain a substantial fishery in the area of the Convention.
The Secretary of State, in consultation with the Secretary, may designate from time to time and for periods of time deemed appropriate Alternate United States Commissioners to the Commission. Any Alternate United States Commissioner may exercise, at any meeting of the Commission or of the General Advisory Committee or Scientific Advisory Subcommittee established pursuant to section 953(b) of this title, all powers and duties of a United States Commissioner in the absence of any United States Commissioner appointed pursuant to subsection (a) of this section for whatever reason. The number of such Alternate United States Commissioners that may be designated for any such meeting shall be limited to the number of United States Commissioners appointed pursuant to subsection (a) of this section who will not be present at such meeting.