Plumber License Requirements in Louisiana
License RequiredLast verified March 9, 2026
Agency And Exam
Issuing agency: State Plumbing Board of Louisiana
Official licensing agency website
Exam provider: PSI
Reciprocity And License Levels
License levels
Journeyman PlumberMaster PlumberNatural Gas FitterMedical Gas InstallerWater Supply Protection Specialist
Reciprocity states
None listed
Notes
Louisiana licenses plumbing through the State Plumbing Board of Louisiana. Current board materials provide public lookup and permitting for licensed journeyman and master plumbers, natural gas fitters, medical gas installers, medical gas verifiers, and water supply protection specialists. Verified against State Plumbing Board of Louisiana materials on 2026-03-09.