Louisiana Revised Statutes Tit. 33, § 140.2. Conflict with other laws

A. If other laws relating to the physical planning, zoning, airport zoning, effectuation of plans, platting, and other purposes of this Subpart are in conflict with the provisions of this Subpart, the provisions of this Subpart shall prevail; provided, however, that where such other laws or provisions thereof provide for other and additional duties, powers, authority, and responsibility, such other laws shall be applicable insofar as they are not in conflict with the provisions of this Subpart.

B. If the city council fails to make use of the provisions of this Subpart, the provisions of this Subpart shall not be construed to displace, amend, supersede or affect existing planning or zoning laws or statutes of the state of Louisiana or of the municipality.