Okla. Stat. tit. 73, § 83.7

Prior to the adoption of any zoning regulations, or any amendment thereto or any other acts which may have an impact on the residents of the District, the Commission shall hold a public hearing on the same after first having given notice by publication of the time and place of said hearing by publication, for not less than ten (10) days prior to said hearing, in a legal publication published in Oklahoma County.