Okla. Stat. tit. 19, § 865.59

From and after the adoption of the plan or plans or portion thereof and their proper certification, then and henceforth no improvement of a type embraced within the recommendations of the plan or plans shall be constructed or authorized without first submitting the proposed plans thereof to the commission and receiving the written recommendations of said commission; provided, however, that this requirement shall be deemed to be waived if the commission fails to make its report and recommendations within forty-five (45) days after the receipt of the proposed plans.