Louisiana

Any person who undertakes to, attempts to, or submits a price or bid or offers to construct, supervise, superintend, oversee, direct, or in any manner assume charge of the construction, alteration, repair, improvement, movement, demolition, putting up, tearing down, or furnishing labor, or furnishing labor together with material 5 and equipment, or installing the same for the construction, installation, maintenance, testing, and repair of air conditioning, refrigeration, heating systems, and plumbing for all residential, commercial, and industrial applications as well as ventilation systems, mechanical work controls, boilers and other pressure vessels, steam and hot water systems and piping, gas piping and fuel storage, and chilled water and condensing water systems and piping, including but not limited to any type of industrial process piping and related valves, fittings, and components, when the cost of the undertaking exceeds the sum of ten thousand dollars. This Paragraph shall not be deemed or construed to limit the authority of a contractor, general contractor, or residential contractor, as those terms are defined in this Section, nor to require such individuals to become a mechanical contractor.  Mechanical contractors installing, moving, or reinstalling boilers or other pressure vessels may be subject to licensure with the Louisiana Office of State Fire Marshal.  May bid, contract and perform any kind of mechanical work without limit anywhere throughout the state. Exempt from any local licensing exam. Local license must still be obtained as required. Employees not required to hold a separate license to perform mechanical work or pull permits.  Exempt from all Fire Marshal licensing requirements for piping for fire sprinkler systems.