Okla. Stat. tit. 11, § 11-49-104: Organization of board - Officers - Rules and other

offices.

The mayor shall be an ex officio member and chairman of the

local board, the municipal clerk shall be ex officio secretary, and

the municipal treasurer shall be ex officio treasurer of the local

board. The mayor shall have a casting vote with the members only

when necessary to avoid a tie vote among them. The members shall

elect a vice chairman from among them and promulgate such other

rules and offices as may be necessary to insure the orderly conduct

of business.