Indiana Code Title 14. Natural and Cultural Resources § 14-13-2-22

Sec. 22. (a) Bonds issued under this chapter or under IC 14-6-29.5 (before its repeal) may be made redeemable before maturity at the option of the commission at the price and under the terms and conditions that are determined by the commission in the authorizing resolution.  The commission shall do the following:

(b) Bonds have the qualities and incidents of negotiable instruments under Indiana law.  Provision may be made for the registration of any of the bonds as to principal alone and also as to both principal and interest.