(a) An alternate for a member of the committee shall act in the place and stead of such member (1) in his absence, or (2) in the event of his removal, resignation, disqualification, or death, and until a successor for his unexpired term has been selected.

(b) If both a member and his or her respective alternate are unable to attend a committee meeting, such member may designate another alternate to act in his or her place in order to obtain a quorum. If the member is unable to designate such an alternate, the committee members present may designate such alternate.

(c) In the event of the death, removal, resignation, or disqualification of any person selected by the Secretary as a member or an alternate member of the committee, a successor for the unexpired term of such person shall be selected by the Secretary. Such selection may be made without regard to the provisions of this subpart as to nominations.