4.1—Chairman.

(a) The Chairman of the Board of Governors is elected by the Governors from among the members of the Board. The Chairman:
(1) Shall preside at all regular and special meetings of the Board, and shall set the agenda for such meetings;
(2) Shall select and appoint the chairman, vice chairman (if any), and members of any committee properly established by the Board;
(3) Serves a term that commences upon election and expires at the end of the first annual meeting following the meeting at which he or she was elected.
(b) If the Postmaster General is elected Chairman of the Board, the Governors shall also elect one of their number to preside during proceedings dealing with matters upon which only the Governors may vote.
(c) (1) Upon the election of a new Chairman of the Board, the immediate past Chairman shall become Chairman Pro Tempore of the Board, to preside during the absence of the Chairman and Vice Chairman at any meeting of the Board during the year or years following the immediate past Chairman's tenure as Chairman and until another Chairman has been elected.
(2) The Chairman Pro Tempore shall, at the request of the Chairman or Vice-Chairman, serve as the representative of the Board of Governors at conferences, trade shows, ceremonial functions and other meetings important to Postal Service business.