The board may promulgate rules governing its own procedures pursuant to Act No. 306 of the Public Acts of 1969, as amended, being section 24.201 to 24.315 of the Michigan Compiled Laws. For a period of 1 year following the effective date of this act the board shall have full authority to exercise all of its functions in accordance with temporary rules of procedure promulgated by the board. Both the temporary and permanent rules of the board shall provide that:

  (a) The board may request the attendance of any witness whose testimony, in the judgment of the board, will aid in the conduct of its investigations.

  (b) A person appearing before the board shall submit either sworn or unsworn testimony as the board may decide and may at all times be represented and accompanied by counsel.

  (c) A record of testimony taken before the board or a hearing officer designated by it shall be made in the manner prescribed by the board.

  (d) The board may, when it appears necessary for the protection of individual rights, hold its meetings and hearings in private. All other meetings and hearings shall be open to the public.