N.Y. State Fin. Law § 69-C
Notwithstanding any other provision of law to the contrary, any State-supported debt may be issued as variable rate bonds.
Notwithstanding any other provision of law to the contrary, for purposes of calculating the present value of debt service and calculating savings in connection with the issuance of refunding indebtedness, (i) the effective interest rate and debt service payable on variable rate bonds in connection with which, and to the extent that, an authorized issuer has entered into an interest rate exchange or similar agreement pursuant to which the authorized issuer makes payments based on a fixed rate and receives payments based on a variable rate that is reasonably expected by such authorized issuer to be equivalent over time to the variable rate paid on the related variable rate bonds, shall be calculated assuming that the rate of interest on such variable rate bonds is the fixed rate payable by the authorized issuer on such interest rate exchange or similar agreement for the scheduled term of such agreement; (ii) the effective interest rate and debt service on variable rate bonds in connection with which, and to the extent that, an authorized issuer has not entered into such an interest rate exchange or similar agreement shall be calculated assuming that interest on such variable interest rate bonds is payable at a rate or rates reasonably assumed by the authorized issuer; (iii) the effective interest rate and debt service on any bonds subject to optional or mandatory tender shall be a rate or rates reasonably assumed by the authorized issuer; (iv) any variable rate bonds that are converted or refunded to a fixed rate, whether or not financed on an interim basis with bond anticipation notes, shall be assumed to generate a present value savings; and (v) otherwise, the effective interest rate and debt service on any bonds shall be calculated at a rate or rates reasonably assumed by the authorized issuer. Notwithstanding any other provision of law to the contrary, for calculating the present value of debt service and calculating savings in connection with the issuance of refunding indebtedness, the refunding of variable rate debt instruments with new variable rate debt instruments shall be excluded from any such requirements, if effectuated for sound business purposes.
N.Y. State Fin. Law § 69-C