(1) The board meets at least once annually, and additionally as defined by board policy.

(2) All board meetings must be open and public, except that the board may hold executive sessions to the extent permitted by chapter 42.30 RCW.

(a) Before convening an executive session, the board chair must publicly announce the purpose for excluding the public from the executive session.

(b) The board chair must announce the executive session place, date, and time.

(c) The executive session may be extended or have the date and time changed by announcement from the board chair.