Miss. Code § 83-53-15
All policies, certificates of insurance, notices of proposed insurance, applications for insurance, endorsements and riders delivered or issued for delivery in this state, and the schedules of premium rates pertaining thereto, shall be filed with the commissioner for his approval prior to use.
If after filing, the commissioner notifies the insurer that the form is disapproved, it is unlawful for the insurer to issue or use the form. In the notice the commissioner shall specify the reason for his disapproval and state that a hearing will be granted within thirty (30) days after receipt of request in writing by the insurer. No such policy, certificate of insurance, notice of proposed insurance, nor any application, endorsement or rider shall be issued or used unless and until the commissioner shall give his prior written approval thereto.
Any insurer or other party affected by any order or final determination of the commissioner under the provisions of this section may obtain judicial review thereof by filing in the Circuit Court of Hinds County within thirty (30) days from the date thereof a written petition or complaint praying that said order or final determination be modified or reversed. A copy of such petition or complaint shall be forthwith served upon the commissioner, and the commissioner shall file a transcript of the entire record of the proceedings with said court, which shall then have jurisdiction of the proceedings and questions determined therein. Said court shall have the power to make or enter a judgment modifying, affirming or reversing the order or final determination of the commissioner in whole or in part.
A premium rate or schedule of premium rates shall be deemed reasonable for all purposes under this chapter and shall be deemed approved by the commissioner upon filing with the commissioner as required by this section if the premium rate or schedule of premium rates meets the requirements for being considered reasonable under Section 83-53-23. However, a different premium rate or schedule of premium rates shall be deemed reasonable upon the filing thereof with the commissioner as required by this section if it produces, or reasonably may be expected to result in claims incurred in excess of fifty percent (50%) of earned premiums.
Miss. Code § 83-53-15