La. Stat. tit. 33 § 4225
When the returns of the election have been received and canvassed by the governing authority of the municipality or district, and the results promulgated, if a majority of the qualified electors of the municipality or district, who voted at the election, have voted in favor of the proposition submitted, the governing authority may issue bonds in the amount, running for the number of years, and bearing interest at a rate not exceeding that submitted, for the purpose set forth in the resolution ordering the election, and secure the same by mortgage of the property specifically described in the resolution and by pledge of the income and revenues of the property.
Thereupon the governing authority may, by resolution, empower and direct the chief executive officer of the municipality or district, and its clerk or secretary, to issue, execute, sign, seal, negotiate, and deliver the bonds and to make and execute in the name and under the seal of the municipality or district, an act of mortgage and pledge to secure the payment of the bonds in principal and interest, in accordance with the resolution ordering the election, and when the act of mortgage and pledge has been executed, the property thus mortgaged and the income and revenues therefrom thus pledged, shall remain mortgaged and pledged for the security of the bonds, in principal and interest, until they have been fully paid and discharged; or, in the alternative, the governing authority of the municipality or district may deposit with the trustee, as provided in the act of mortgage, cash or United States government bonds in a sufficient amount to fully pay the then outstanding bonds and interest thereon, and, upon such deposit being made, the trustee may cancel the mortgage.
In case default is made in payment of bonds, or any of them, in whole or in part, or of any installment of interest thereon, when the same becomes due, the holder of the bonds may proceed against the governing authority of the municipality or district to enforce the pledge of income and revenues and foreclose the mortgage by seizure and sale of the property mortgaged, as if proceeding against a private person. But, bonds issued under the provisions of this Sub-part and the liability arising therefrom shall not be a charge upon the other income and revenues of the municipality or district issuing the bonds, and shall not be included in computing the indebtedness of the municipality or district for the purpose of determining any constitutional limitation.
La. R.S. § 33:4225