La. Stat. tit. 33 § 4252
Bonds issued under this Subpart shall be authorized by resolution of the governing body and shall be payable solely from the income and revenues to be derived from the operation of the utility. The bonds shall not constitute an indebtedness or pledge of the general credit of the municipal corporation within the meaning of any constitutional or statutory limitation of indebtedness and shall contain a recital to that effect. They shall be in coupon form but may be made registerable as to principal if so provided in the resolution authorizing the issuance. The bonds shall be in the denomination of one hundred dollars or a multiple thereof, shall mature serially or otherwise in the manner provided by the governing body, but not later than forty years from their date and shall be made payable at the place provided by the governing body. They may be made redeemable at the option of the issuing municipality prior to maturity at the premium (not greater than ten percent of the principal amount thereof) which the governing body determines. The bonds shall be signed by the presiding officer and attested by the secretary or clerk of the municipality under the official seal of the municipality, in the manner provided in the resolution authorizing their issuance. Interest coupons to be attached thereto may be executed with the facsimile signature of the officers, and in the event that any officer whose signature appears on the bonds or coupons ceases to hold office before the delivery of the bonds to the purchaser, his signature shall nevertheless be valid and sufficient for all purposes. The bonds shall be sold in the manner and at the times which the governing body determines, except that in no event shall the bonds be sold at a price of less than par or bear an interest rate of greater than eight percentum per annum.
In the event bonds authorized under this Subpart are proposed to be sold to any agency of the United States Government, pursuant to the terms of a written agreement between the political subdivision and such agency said bonds may be issued in the form of a single bond, may be fully registerable as to principal and interest, and may provide for repayment of principal and/or interest on amortized installments, in lieu of being issued as serial coupon bonds.
La. R.S. § 33:4252