CAGC Plumber Certification South Carolina

The 2026 MASC-to-CAGC Transition

If you've been looking into getting your Journeyman or Master Plumber certification in South Carolina, you've probably run into conflicting information. That's because the program changed hands on January 1, 2026.

The Municipal Association of South Carolina (MASC) ran the Mechanical Trades Certification Program since 1965. Effective January 2026, the Carolinas Associated General Contractors (CAGC) Foundation assumed full administrative and operational control. The program is now called the CAGC SC Trades Certification Program.

The practical impact: if you're referencing any MASC forms, MASC portal links, or instructions that mention MASC as the certifying body, they're outdated. Applications and renewals now go through CAGC; exam scheduling goes through Prov after CAGC approval.

What the CAGC Certification Actually Is

This is the source of most confusion in the SC plumbing landscape. A CAGC Journeyman or Master Plumber certification is a trade competency card — it proves you have the technical knowledge and field experience to perform plumbing work. It is not a contractor license.

A certified Master Plumber cannot independently bid on work, pull building permits, enter into direct contracts with customers, or advertise plumbing services. Those activities require a separate state contractor license from either the Residential Builders Commission (RBC) or the Contractor's Licensing Board (CLB).

What the certification does allow: it qualifies you to serve as a Primary Qualifying Party (PQP) for a business entity's contractor license. Every licensed plumbing contractor in South Carolina must designate a qualified PQP — typically a certified Master Plumber or an individual who has passed the state-level plumbing trade exam — so the trade card is one route to business licensing, even though it doesn't function as a license itself.

Application Process

The CAGC application follows an apply-first, test-second sequence:

1. Submit an application to the CAGC Foundation with the $35 processing fee
2. CAGC reviews your on-the-job training hours and education documentation
3. Upon approval, CAGC issues a testing voucher code
4. Register with Prov using the voucher code — schedule at a physical testing center or take the exam remotely through Prov's Examroom service
5. Pass the exam — open-book, approved code references and trade calculators permitted
6. Receive your certification card from CAGC

The Prov exam fee is $100 per attempt.

Experience Requirements

Journeyman Plumber: Two years of documented on-the-job training. A two-year technical degree from an accredited institution can substitute for one year.

Master Plumber: Four years of field experience, with at least two years at the Journeyman level.

Experience must be documented through notarized affidavits from supervising licensed contractors. If you completed a DOL-registered apprenticeship, the federal completion certificate is accepted as verified experience.

Renewals After the Transition

CAGC now administers certifications formerly handled by MASC. For an existing MASC certification, confirm the transition and renewal procedure with CAGC; future renewals go through the CAGC program, not MASC.

Make sure your contact information is current with CAGC — renewal notices go to the email and mailing address on file, and a missed renewal can lapse your certification.

What If You Fail the Exam

Pay a $35 retesting fee to the CAGC Foundation to receive a new Prov testing voucher. Then register with Prov again and reschedule. The retesting fee is separate from the exam fee — so a failed attempt costs $35 (CAGC) + $100 (Prov) to retry.

Next Steps After Certification

Once you hold a Master Plumber certification, the path to independent contracting requires a state contractor license:

• Residential work over $500: Apply to the RBC for a Residential Specialty Plumbing (RBP) license
• Commercial work over $10,000: Apply to the CLB for a Mechanical Contractor (PB) license

Both tracks require additional exams through PSI (separate from the Prov trade exam), business entity registration, insurance, and surety bonds.

The South Carolina Plumber License Guide walks through the complete sequence from CAGC trade certification through state contractor licensing, covering both the residential and commercial tracks with the updated CAGC procedures.

See more South Carolina guides →