Oregon Revised Statutes Agriculture § 569.600

(1) The State Weed Board is created in the State Department of Agriculture. The board shall consist of seven members appointed by the Director of Agriculture as follows:

(2) The term of each member is four years, but a member serves at the pleasure of the director. Before the expiration of the term of a member, the director shall appoint a successor. A member is eligible for reappointment. If there is a vacancy for any cause, the director shall make an appointment to become immediately effective for the unexpired term.

(3) As used in subsection (1) of this section, “summit of the Cascade Mountains” means a line beginning at the intersection of the northern boundary of the State of Oregon and the western boundary of Hood River County; thence southerly along the western boundaries of Hood River, Jefferson, Deschutes and Klamath Counties to the southern boundary of the State of Oregon.