16 U.S. Code § 5703 - Panel
The Secretary of State may designate an alternate Panel member for each Panel member the Secretary appoints under subsections  (b)(1) and (3) of this section, who meets the same qualifications, to serve in the absence of the Panel member. The Governor of the State of Alaska may designate an alternative Panel member for the Panel member appointed under subsection (b)(2) of this section, who meets the same qualifications, to serve in the absence of that Panel member.
Panel members and alternate Panel members shall serve four-year terms. Any individual appointed to fill a vacancy occurring before the expiration of any term shall be appointed for the remainder of that term.
Decisions by the United States section of the Panel shall be made by the consensus of the Panel members appointed under paragraphs (2) and (3) of subsection (a) of this section.
In carrying out their functions under the Agreement, Panel members may consult with such other interested parties as they consider appropriate.
 So in original. Probably should be “subsection”.