19-18-503. Fund to be soundly funded. (1) Each disability and pension fund must be soundly funded. The fund is soundly funded if, subject to subsection (2):
(a) assets in the fund are maintained at a level equal to at least 0.21% but no more than 0.52% of the total assessed value of taxable property, determined as provided in 15-8-111, within the limits of the city or town; or
(b) funding is maintained at a level determined by an actuarial valuation to be sufficient to keep the fund actuarially sound.
(2) An actuarial valuation may be requested only by a city, town, or association. Once an actuarial valuation has been conducted, funding must continue to be based on actuarial determinations rather than on the total assessed value of taxable property pursuant to subsection (1)(a).