(1) The following will be deemed of a significant public interest to require notice and the availability of an opportunity for public participation in the decision making process:

(a) The adoption, amendment or repeal of an administrative rule which sets forth formula and factors for adopting or changing premium rates for classifications or other administrative rulemaking pursuant to Title 2, chapter 4, MCA.

(b) Premium rate adjustments.

(c) Any final agency action as defined by 2-3-102 (3) , MCA, that is of significant interest to the public.