Okla. Stat. tit. 11 § 13-107
The question of whether or not the municipality shall adopt the proposed charter shall be submitted to the registered voters of the municipality at a general or special election. If a majority of the votes cast, as certified by the secretary of the county election board, are in favor of adopting the charter, the charter shall then be certified by the mayor of the municipality and authenticated by the seal of the municipality. The submission to and approval by the registered voters shall be set forth on the charter. The charter shall then be submitted to the Governor for his approval, and the Governor shall approve the charter if it is not in conflict with the Constitution and laws of Oklahoma. Upon his approval, the charter shall become the organic law of the municipality and supersede any existing charter and all ordinances in conflict with it.
in conflict with it.
Okla. Stat. tit. 11, § 13-107