(a) In determining minimum cash surrender values, minimum amounts and minimum periods of paid-up nonforfeiture benefits and minimum reserve liabilities, for any policy of insurance delivered or issued for delivery in this State after the operative date of Insurance Law section 4221(k) for that policy form, at the option of the insurer and subject to the conditions stated in section 57.4 of this Part:

1. (1) the 1980 CSO Smoker and Nonsmoker Mortality Tables, with or without Ten-Year Select Mortality Factors, may be substituted for the 1980 CSO Table, with or without Ten-Year Select Mortality Factors; and
2. (2) the 1980 CET Smoker and Nonsmoker Mortality Tables may be substituted for the 1980 CET Table.