The General Rules and Regulations under the Trust Indenture Act of 1939 are applicable to statements of eligibility on this Form. "Act" has the meaning given to such term in the Recitals hereto.INDENTURE, conveyancing. "Series Supplement" means any indenture supplemental to the Indenture in the form attached as. The form of indenture and the Form T-1 must be included in the registration statement at the time of effectiveness. An indenture agreement is a legally binding document or contract that establishes terms and conditions between two or more parties. A contract between an Issuer and a Trustee (normally a commercial bank with trust powers) under which the Issuer issues Bonds and specifies their Maturities. INDENTURE, conveyancing. "Act" means Chapter 303, Texas Local Government Code, as amended. Complete documentation for each trust indenture is of utmost importance.