(1) Carpeting is prohibited in the working areas, dispensaries, and restrooms of all salons, shops, and schools licensed on or after November 19, 2004.

(a) Salons, shops, and schools licensed prior to November 19, 2004, shall use appropriate, nonabsorbent floor covering to cover the existing carpet.

(b) Upon alteration or remodeling of the salon, shop, or school, carpeted flooring must be removed and replaced with appropriate, nonabsorbent floor covering.

(2) Floors, walls, ceilings, doors, windows, screens, entrances, and receptacles, including those in the restrooms, must be maintained in clean and safe conditions at all times.