The board is established under RCW 28B.50.050 to implement the educational and administrative purposes established by RCW 28B.50.090 and 28B.50.020. The board is operated under the supervision and control of a board of trustees. The board of trustees is made up of nine members appointed by the governor for a term of four years. The trustees meet in regular meetings as published in the Washington Administrative Code unless public notice is given of a special meeting. At such time, the board exercises the powers and duties granted it under RCW 28B.50.090 and other provisions of the laws of Washington.