Section 26.1-18.1-15 - Filing requirements for rating information1. No premium rate may be used until either a schedule of premium rates or methodology for determining premium rates has been filed with and approved by the commissioner.2. Either a specific schedule of premium rates, or a methodology for determining premium rates, must be established in accordance with actuarial principles for various categories of enrollees, provided that the premium applicable to an enrollee may not be individually determined based on the status of the enrollee's health. However, the premium rates may not be excessive, inadequate, or unfairly discriminatory. A certification by a qualified actuary or other qualified person acceptable to the commissioner as to the appropriateness of the use of the methodology, based on reasonable assumptions, shall accompany the filing along with adequate supporting information.3. The commissioner shall approve the schedule of premium rates or methodology for determining premium rates if the requirements of subsection 2 are met. The procedures set forth in sections 26.1-30-20 and 26.1-30-21 govern the approval and disapproval of rating information required to be filed under this section.