La. Stat. tit. 39 § 99.20
This Subpart and all powers granted hereby shall be liberally construed to effectuate its and their purposes, without implied limitations thereon. This Subpart shall constitute full and complete authority for all things herein contemplated to be done. All rights and powers herein granted shall be cumulative with those derived from other sources and shall not, except as expressly stated herein, be construed in limitation thereof. Insofar as the provisions of this Subpart are inconsistent with the provisions of any other law, general or special, the provisions of this Subpart shall be controlling. If a provision of this Subpart or its application is held invalid, the invalidity shall not affect other provisions or application of this Subpart which can be given effect without the invalid provisions or application.
La. R.S. § 39:99.20