Section 255.519 - Variable rate obligations(1) With respect to the provisions of s. 215.84(3), if the interest rate on bonds bearing a floating or variable rate of interest as calculated on the date of the initial sale thereof does not exceed the limitation provided by s. 215.84(3), so long as the basis, method, or formula for computing the floating or variable rate does not change during the life of the bonds, subsequent increases in the interest rate in accordance with said basis, method, or formula shall not cause the interest rate on the bonds to violate the limitation provided by s. 215.84(3). A certificate by the issuer of the bonds as to the computation of the interest rate in compliance with this requirement shall be deemed conclusive evidence of compliance with the provisions of s. 215.84(3).(2) With respect to all variable rate obligations of 5 years' maturity or less for purposes of determining compliance with all rate covenant tests under this act, the State Board of Administration shall recompute debt service to an amount which will fully amortize the debt in level payments of principal and interest over 25 years at the assumed rate.