Louisiana Revised Statutes Tit. 37, § 1367. License required; residential, journeyman, and master plumber; medical gas piping installer; medical gas and vacuum systems verifier; water supply protection specialist endorsement; gas fitter and master gas fitter; local examination preempted

B. No natural person shall engage in the work of a master plumber unless he possesses a master plumber's license or renewal thereof issued by the board. A master plumber shall not engage in the work of a journeyman plumber unless he currently possesses or previously possessed a journeyman plumber's license issued by the board. A person issued a master plumber's license shall designate to the board, as required by the regulations of the board, an employing entity, which may be a corporation, partnership, or sole proprietorship. A licensed master plumber shall notify the board of any change of employment status with an employing entity. A master plumber shall designate no more than one employing entity at any time.

C. No employing entity shall hold itself out as engaging in the business or art of plumbing unless it employs a master plumber. For purposes of this Section, employment of a master plumber means employment on a regular paid basis for actual services performed supervising journeyman plumbers.

D. The board shall adopt regulations to implement this Section.

E. This Section shall preempt municipal or other local regulatory examination authority over master plumbers, notwithstanding any contrary provision of any home rule charter. Municipal or other local regulatory authorities may assess and collect locally adopted fees and charges relative to plumbing work as defined in R.S. 37:1377 performed in their respective jurisdictions, but only to persons licensed under R.S. 37:1368.

F. No natural person shall engage in doing the work of a medical gas piping installer unless he possesses a license or renewal thereof issued by the board.

G. No natural person shall engage in the work of a water supply protection specialist unless he possesses a license or renewal thereof issued by the board as a journeyman plumber or master plumber and also possesses a special endorsement issued by the board pertaining to his work as a water supply protection specialist.

H. No natural person shall engage in doing the work of a medical gas and vacuum systems verifier unless he possesses a license or renewal thereof issued by the board. Inspection and verification work performed by such person shall be conducted in person and at the physical site of the medical gas and vacuum systems subject to his verification.