(1) As soon as practicable after the filing of the annual statement, the reserves for all outstanding policies of all life insurance companies making such statements shall be ascertained as provided in this section.

(2) (a) The commissioner shall ascertain the reserve for every policy in force on the books of domestic companies on the thirty-first day of December immediately preceding, in accordance with the following minimum standards:

(I) With respect to policies issued prior to March 28, 1945, the American experience table of mortality and four percent interest or the actuaries' combined experience table of mortality and four percent interest, as adopted by the company, with the privilege of one year preliminary term in either case; but, if any such company has any such policies outstanding issued on the basis of a higher reserve standard than the above, such higher standard shall be the minimum standard for such policies;

(II) With respect to policies issued after March 28, 1945, the American experience table of mortality and three and one-half percent interest, or the commissioner's 1941 standard ordinary mortality table and three and one-half percent interest, or, for industrial policies, the 1941 standard industrial mortality table and three and one-half percent interest, as adopted by the company, with the privilege of one year preliminary term in any case. For policies issued on a substandard basis, such other table of mortality as may be specified by the company and approved by the commissioner may be used. The mortality table and rate of interest prescribed in any of such policies as the basis for calculating nonforfeiture benefits thereunder, with the privilege of one year preliminary term, shall be used as the minimum standard for the valuation of such policies in case that standard produces greater aggregate reserves for all such policies than the standards above specified in this subparagraph (II).

(III) With respect to policies issued on or after the operative date of the "Standard Nonforfeiture and Valuation Act", part 3 of this article, and prior to the operative date of the valuation manual, in accordance with sections 10-7-309 to 10-7-313.2;

(IV) With respect to policies, including accident and health contracts and deposit-type contracts, issued on or after the operative date of the valuation manual, in accordance with sections 10-7-313.3 and 10-7-313.4.

(b) The commissioner may accept the valuation made by the company, upon satisfactory proof of its correctness.

(3) The reserve for all policies in force in any such domestic company being ascertained, as provided in this section, within sixty days thereafter, the company, at its option, may deposit with the commissioner for security and benefit of its policyholders the amount of the ascertained valuation in admitted assets which under section 10-3-235 (2) are securities eligible for optional reserve deposits. All companies depositing sufficient reserves as provided in this section may print on their policies a certificate reading as follows: "The full reserve on this policy is deposited with the insurance commissioner in approved securities in accordance with the optional reserve deposit law of the state of Colorado".

(4) In valuing policies issued by foreign companies, the respective standard adopted by each company forsuch policies shall be used as the basis of the valuation, but the standard must not be lower than the standard prescribed by subsection (2) of this section for domestic companies.

(5) Reserves for all policies may be calculated, at the option of the company, according to any standards which produce greater aggregate reserves than the minimum reserves required by this section.

(6) Valuation in the case of an alien company shall be limited to its United States business.