(c) This subsection shall apply to only those policies and contracts issued prior to the operative date of
K.S.A. 40-428, and amendments thereto, the standard nonforfeiture law, except as provided in subsection (d).
For the purpose of such valuations and for making special examinations of the condition of life insurance companies, as provided by the laws of this state, and for valuing all outstanding policies of every life insurance company, the method and basis of valuation shall be the same as prescribed by the insurance code of this state in the valuation of such contracts before June 1, 1927. The legal minimum standard for the valuation of life insurance contracts issued on or after June 1, 1927, shall be the one-year preliminary-term method of valuation, except as hereinafter modified, on the basis of the American experience table of mortality with interest at 4% per annum. If the premium charged for term insurance under limited-payment life preliminary-term policy providing for the payment of all premiums thereon in less than 20 years from the date of policy, or under an endowment preliminary-term policy, exceeds that charged for life insurance under twenty-payment life preliminary-term policy of the same company, the reserve thereon at the end of any year, including the first, shall not be less than the reserve on a twenty-payment life preliminary-term policy issued in the same year and at the same age, together with an amount which shall be equivalent to the accumulation of a net level premium sufficient to provide for a pure endowment at the end of the premium-payment period, equal to the difference between the value at the end of such period of such a twenty-payment life preliminary-term policy and the full net level premium reserve at such time of such a limited-payment life or endowment policy. The premium-payment period is the period during which premiums are concurrently payable, under such twenty-payment life preliminary-term policy and such limited-payment life or endowment policy. Policies issued on the preliminary-term method shall contain a clause specifying that the reserve thereof shall be computed in accordance with the modified preliminary-term method of valuation provided therein. Except as otherwise provided for group annuity and pure endowment contracts in paragraphs (1-a) and (1-b) of subsection (d), the legal minimum standard for the valuation of annuities shall be McClintock's "table of mortality among annuitants," with interest at 4% per annum, but annuities deferred 10 or more years and written in connection with life insurance shall be valued on the same basis as that used in computing the consideration or premiums therefor, or upon any higher standard at the option of the company. The commissioner of insurance may, in the commissioner's discretion, vary the above standard of interest and mortality in cases of companies organized under the laws of a foreign country and in particular cases of invalid lives or other extra hazards.
Reserves for all such policies and contracts may be calculated, at the option of the company, according to any standards which produce greater aggregate reserves for all such policies and contracts than the minimum reserves required by this subsection.