191—94.3 (508) 2001 CSO Preferred Class Structure Mortality Table. At the election of the company, for each calendar year of issue, for any one or more specified plans of insurance and subject to the conditions stated in this chapter, the 2001 CSO Preferred Class Structure Mortality Table may be substituted in place of the 2001 CSO Smoker or Nonsmoker Mortality Table as the minimum valuation standard for policies issued on or after January 1, 2007. No such election shall be made until the company demonstrates that at least 20 percent of the business to be valued using this table is in one or more of the preferred classes. A table from the 2001 CSO Preferred Class Structure Mortality Table used in place of a 2001 CSO Mortality Table, pursuant to the requirements of this rule, will be treated as part of the 2001 CSO Mortality Table for purposes of reserve valuation only, pursuant to the requirements of the National Association of Insurance Commissioners’ model regulation, “Recognition of the 2001 CSO Mortality Table for Use in Determining Minimum Reserve Liabilities and Nonforfeiture Benefits Model Regulation.”