(1) The purpose of these rules is to prescribe:

(a) guidelines and standards for statements of actuarial opinion which are to be submitted in accordance with 33-2-521(4), (5) and 33-7-118(2), MCA, and for memoranda in support thereof;

(b) rules applicable to the appointment of an appointed actuary; and

(c) guidance as to the meaning of "adequacy of reserves."