Okla. Admin. Code § 510:1-3-4
The Board holds regular quarterly meetings on the third Thursday of March, June and September and the second Thursday of December of each year except that such regularly scheduled meetings may be cancelled or changed at the Boards discretion. The Board may hold other meetings of a special or emergency nature in its discretion. Meetings will be conducted at the Board office or other designated locations as necessary or desirable. A majority of the members of the Board constitute a quorum and may transact any business of the Board by a simple majority vote of the quorum present. The Board Executive Director, or designee, shall ensure all notice and final Agenda posting requirements for any meeting of the Board comply with 25 O.S. § 311.
Okla. Admin. Code § 510:1-3-4