If a domestic HMO, including any person controlling a domestic HMO, is proposing a merger or acquisition pursuant to Section 6930 of the HMO Act and Section 1653(a) of the Holding Company Act, that person shall file a preacquisition notification form, HMO Form E, as set forth in Appendix E of this Chapter. In addition to the information required by HMO Form E, the Commissioner may require an expert opinion as to the competitive impact of the proposed acquisition.
Okla. Admin. Code § 365:40-3-20