Conn. Gen. Stat. § 7-370a: Interest rate not limited.

Any municipality, as defined in section 7-369, authorized to issue bonds, notes or other obligations under any provision of the general statutes or any special act or its charter, may issue such bonds, notes or other obligations bearing interest at such rate or rates as it may deem advisable, or at such discounts as it may deem advisable, notwithstanding any provision of the general statutes, special acts or its charter limiting the rate of interest such bonds, notes or other obligations may bear.