which bonds have trust indentures 
trust indentures may not be included in every bond contract given thatsome government bonds disclose similar information the duties andrights of the issuer and bondholders in a document called the bond resolution many of the current rules regarding trust indentures were established by the trust indenture act tia a piece of legislation passed in 1939 to protect bondholders and investors however most corporate offerings must include a trust indenture a copy of it must be filed with the securities and exchange commission sec for corporate bonds with aggregate principal issues of at least 5 million corporate issues for less than 5 million municipal bonds and bonds issued by the government are not required to file trust indentures with the sec of course these exempted entities may choose to create a trust indenture to reassure prospective bond buyers if not to adhere to any federal law 