Certifications for Plumbers, Pipefitters, and Steamfitters
28 certifications are listed for Plumbers, Pipefitters, and Steamfitters (O*NET 47-2152.00) in the U.S. Department of Labor's CareerOneStop Certification Finder. 23 are tied directly to this occupation; the other 5 are related.
The order is CareerOneStop's, not ours: in demand first, then NCCA- and ANAB-accredited, then the rest. Downloaded July 2026. Records marked confidential or withdrawn at source are not published here. Listing is not endorsement, and this page is not advice about which credential to pursue.
- Backflow Prevention Assembly Tester(BPAT)ANAB (ANSI) accredited
- Commercial Plumbing Inspector(CPI)Military occupational specialty
- Journey Level Pipefitter-SteamfitterMilitary occupational specialty
- Plumbing Plans Examiner(PPE)Military occupational specialty
- STAR Fire SprinklerFitter MasteryMilitary occupational specialty
- STAR Plumber MasteryMilitary occupational specialty
- STAR Steamfitting-Pipefitting MasteryMilitary occupational specialty
- UPC Journeyman PlumberMilitary occupational specialty
- UPC RESIDENTIAL AND COMMERCIAL PLUMBING INSPECTOR(PI)Military occupational specialty
- UPC RESIDENTIAL AND COMMERCIAL PLUMBING PLANS EXAMINER(PPE)Military occupational specialty
- Certified in Plumbing Design(CPD)Military occupational specialty
- Fluid Power Connector and Conductor(CFPC&C)Military occupational specialtyIndustry-endorsed
- Internal Corrosion TechnologistMilitary occupational specialty
- Plumber AssessmentIndustry-endorsed
- Backflow Prevention Assembly Repairer Certification
- Backflow Prevention Assembly Tester Certification
- Backflow Prevention Cross-Connection Control Surveyor Certification
- Backflow Prevention Program Specialist/Administrator Certification
- Hydronic Heating and Cooling Certification(ASSE)
- Infection Control & Water Quality Certification
- Medical Devices - Quality Management Systems(ISO 13485)
- Plumbing
- Rainwater Catchment Systems Certification
- Residential Potable Water Fire Protection Certification(ASSE)
- Service Plumbing Certification
- Water-Based Fire Protection Certification
- Certified Plumbing Design Technician(CPDT)
- Corrosion Specialist
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Certification data from CareerOneStop, sponsored by the U.S. Department of Labor, Employment and Training Administration (DOLETA) and the Minnesota Department of Employment & Economic Development (DEED).
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