Louisiana Revised Statutes Tit. 37, § 1374. Penalty

B. (1) Upon receipt of a complaint from a consumer for whom the work was performed, the Louisiana State Plumbing Board shall have the authority to fine any person, or employing entity, who performs plumbing work or engages in the business of plumbing while not possessing a license or endorsement issued by the board or otherwise in violation of this Chapter, subject to the provisions of the Administrative Procedure Act, an amount not more than five thousand dollars. The monies collected pursuant to this Subsection shall be used by the board in a manner consistent with R.S. 37:1371.

(2) The provisions of Paragraph (1) of this Subsection also apply to unlicensed gas fitters.