La. Stat. tit. 33 § 4132
The provisions of R.S. 33:4125 to R.S. 33:4131, inclusive, shall not affect the right, power and authority of the city of New Orleans to levy a tax on all taxable property in the city of New Orleans sufficient to pay the principal of and interest on any bonds of the city of New Orleans heretofore issued and now outstanding, or which may be issued in the future under the provisions of Act 4 of 1916, as amended, and Act 3 of the Extra Session of 1927, as amended, which acts now form a part of the constitution of Louisiana, nor the right, power and authority of the city of New Orleans to issue bonds in the future under the authority of said acts. The bonds issued under authority of R.S. 33:4125 shall not be included in computing the indebtedness of the city of New Orleans under any limitation prescribed by the constitution or statutes of the state of Louisiana.
La. R.S. § 33:4132