The commissioner may promulgate rules prescribing minimum standards applicable to the valuation of plans or products not otherwise included within this article and in conformance with standards as adopted by the NAIC. The commissioner shall promulgate rules containing the minimum standards applicable to the valuation of health plans, including disability, sickness, and accident, issued on or after the operative date of this part 3 and prior to the operative date of the valuation manual. For accident and health insurance contracts issued on or after the operative date of the valuation manual, the standard prescribed in the valuation manual is the minimum standard of valuation required under section 10-7-101 (2)(a)(IV).