Okla. Stat. tit. 11, § 11-37-107: Bonds for waterworks - Form

Upon the approval of a majority of the registered voters of the

municipality voting on the question, the bonds shall be issued by

the governing body in the manner provided by the Constitution and

laws of Oklahoma. Bonds issued under this section shall be payable

not more than twenty-five (25) years from the date of their issue,

with interest thereon at a rate not exceeding a maximum rate

established by law. The bonds shall be signed by the mayor and

countersigned by the municipal clerk. Facsimile signatures may be

used as provided in the Registered Public Obligations Act of

Oklahoma.