La. Stat. tit. 33 § 140.50.36
For the purposes of promoting the public health, safety, morals, convenience, order, prosperity, and general welfare, the town council and the police jury are hereby empowered, in accordance with the conditions and procedures specified in this Subpart, to adopt housing codes prescribing minimum standards for the area, volume, light, air, ventilation, illumination, occupancy and density of occupancy, and sanitation of dwellings and dwelling places; to adopt building codes, plumbing codes, electrical codes, and related measures to regulate the construction, reconstruction, alteration, extension, conversion, or maintenance of buildings; to regulate by building and housing codes or other measures or ordinances conditions of sanitation, including requirements for water supply and sewerage disposal and drainage; and to adopt such other ordinances, regulations, and plans as, in their judgment, are necessary to effect the rehabilitation of substandard dwellings and blighted areas within the municipality, in the case of the municipality, and within that part of the parish within the metropolitan planning area but outside the municipality, in the case of the parish; provided, however, that such codes, ordinances, plans, or other measures may be adopted with respect only to such portion of the metropolitan planning area outside the municipality as, in the judgment of the police jury, is deemed necessary.
La. R.S. § 33:140.50.36