(1) Each small employer carrier shall maintain at its principal place of business a complete and detailed description of its rating practices and renewal underwriting practices, including information and documentation which demonstrate that its rating methods and practices are based upon commonly accepted actuarial assumptions and are in accordance with sound actuarial principles.
(2) Each small employer carrier shall file each March 1 with the Insurance Commissioner an actuarial certification that the carrier is in compliance with this section and that the rating methods of the carrier are actuarially sound. A copy of the certification shall be retained by the carrier at its principal place of business.
(3) A small employer carrier shall make the information and documentation described in subsection (a) of this section available to the commissioner upon request. The information shall be considered proprietary and trade secret information and shall not be subject to disclosure by the commissioner to persons outside of the State Insurance Department except as agreed to by the carrier or as ordered by a court of competent jurisdiction.