A. This Sub-part shall be liberally construed to promote the purposes for which it is enacted.
B. This Sub-part shall not repeal, modify, affect or supersede any law whatsoever on the same subject matter, but is intended to furnish additional means whereby municipalities may create sewerage districts and sub-districts and said sewerage districts or sub-districts heretofore or hereafter created may accomplish the objects and purposes provided for in this Sub-part.