Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 545.185

The board of directors shall hold a regular monthly meeting in its office. The time of the regular monthly meeting shall be fixed by resolution of the board at the regular annual organizational meeting required by ORS 545.181. Special meetings required for the proper transaction of business may be held when called by the president or ordered by a majority of the board, by an order entered in the records of the board. Five days' notice of the special meeting must be given by the secretary to each member not joining in the order. The order must specify the business to be transacted, and business other than that specified may not be transacted at the special meeting, unless all the members are present. All meetings of the board must be public, and a majority of the members shall constitute a quorum for the transaction of business. However, on all questions requiring a vote there shall be concurrence of a majority of the board. All records of the board shall be open to public inspection during business hours.