Missouri Revised Statutes Title XVIII. Labor and Industrial Relations § 287.965. Aggrieved party may file application with director, hearing held, when--findings, effect of

1. Any person or organization aggrieved with respect to any filing which is in effect may make written application to the director for a hearing thereon, except that the insurer or rating organization that made the filing shall not be authorized to proceed under this subsection. Such application shall specify the grounds to be relied upon by the applicant. If the director finds that the application is made in good faith, that the applicant would be so aggrieved if his grounds are established, and that such grounds otherwise justify holding such a hearing, he shall, within thirty days after receipt of such application, hold a hearing upon not less than ten days' written notice to the applicant and to every insurer which made such filing.

2. If, after such hearing, the director finds that the filing does not meet the requirements of sections 287.930 to 287.975, he shall issue an order specifying in what respects he finds that such filing fails to meet the requirements of sections 287.930 to 287.975, and stating when, within a reasonable period thereafter, such filing shall be deemed no longer effective. Copies of such order shall be sent to the applicant and to every such insurer. The order shall not affect any contract or policy made or issued prior to the expiration of the period set forth in such order.