Okla. Stat. tit. 11, § 11-18-102: Election on question - Notice

The question of changing the statutory form of city government

shall be submitted to the registered voters of the city at a general

or special election to be held in the city not less than sixty (60)

days nor more than ninety (90) days after the date of the order

calling for the election. Notice of the election on the question

shall be given by the governing body in the manner required for

municipal elections.