Michigan Compiled Laws, Chapter 339. Occupational Code § 339.5311

(a) A board shall meet as often as necessary to fulfill its duties under this act, but shall meet at least 2 times a year and at other dates set by the director.

(b) In addition to the meetings described in subdivision (a), special meetings of a board may be called by the chairperson or by a majority of members of the board.  The department shall notify the members of the board of a special meeting at least 12 days before the date of the meeting.

(c) A majority of the members appointed and serving on a board constitute a quorum.

(d) A member of a board shall not vote by proxy.

(e) A board shall conduct its meetings pursuant to the open meetings act, 1976 PA 267, MCL 15.261 to 15.275.