La. Stat. tit. 39 § 786
The governing authority of any parish, for the parish or any ward therein, or the municipal authorities of any municipality, shall, when the vote is in favor of the levy of the taxes, levy and collect annually, in addition to other taxes, a tax upon all taxable property within the parish, ward or municipality, in an amount sufficient to pay the amount specified to be paid in the ordinance, and the parish and municipal governing authorities shall have the same authority and right to enforce the collection of the special tax authorized by the election as may be conferred upon them for the collection of other taxes. The taxes so collected shall be used for the purpose named in the ordinance, and shall be paid over, when collected by the proper officers, to the treasurer for the person or corporation entitled thereto, after deducting lawful commission for collecting them.
La. R.S. § 39:786