§47-2-308.2.

§47-2-308.2.
   
   (2) On the basis of such tables and rates as the Board shall adopt,
   the actuary shall prepare an annual actuarial valuation of the assets
   and liabilities of the System and certify the rates of contribution
   payable by the state under the provisions of law concerning the
   System.
   
   (3) Subject to the funds available to the System, the employer
   contributions to the System shall be determined on the basis of the
   most recent actuarial valuation, which amount shall be calculated as
   the sum of the normal cost for the fiscal year plus the payment
   required to amortize the unfunded accrued liability by level dollar
   payments over forty (40) years from July 1, 1980.