For any policy of insurance on the life of either a male or female insured delivered or issued for delivery in this state after the operative date of Iowa Code section 50837., an insurer may:
Tables 1980 CSO-A, 1980 CET-A, 1980 CSO-G, and 1980 CET-G shall not be used with respect to policies issued on or after January 1,1985, except where 90 percent or more of persons insured thereunder are anticipated to be of one gender or except for certain policies converted from group insurance. Such group conversions issued on or after January I, 1986, shall use mortality tables based on the blend of lives by gender expected for such policies if the group conversion policy is considered to be controlled by the decision in Arizona Governing Committee v. Norris.
Iowa Admin. Code r. 191-42.3