Section 63.252 - Form of Bonds(a) Bonds issued under the provisions of this chapter shall be issued in the name of the district and shall be signed by the chairman of the commission and attested by the secretary, with the district's seal affixed to each bond.(b) The bonds shall be issued in the denominations and payable annually or semiannually at the time or times, not more than 40 years from their date, that the commission considers most expedient. Acts 1971, 62nd Leg., p. 110, ch. 58, Sec. 1, eff. 8/30/1971.