LicensebyState

Moving to South Carolina as a master plumber: every state's rule

South Carolina has reciprocity agreements with 1 state. Everyone else follows its standard out-of-state path: experience credit.

South Carolina master plumber · “Mechanical Contractor, Plumbing (PB) classification - Qualifying Party certification”

Statewide license

Verified September 16, 2026· 5 sources

Issued by South Carolina Contractor's Licensing Board (LLR); Residential Builders Commission for residential-only specialty work

South Carolina has no license titled 'master plumber'. The highest person-held plumbing credential is the Contractor's Licensing Board's Qualifying Party certification in the Plumbing (PB) classification of the Mechanical Contractor license. The individual passes the South Carolina Plumber technical exam through PSI (or holds a CAGC/MASC Master Plumber certification earned by exam, or a listed out-of-state waiver exam) and the South Carolina Business Management & Law for Commercial Contractors exam, documents two years of full-time experience within the past five years in the classification (or a PHCC Academy of North Carolina plumbing apprenticeship certificate), and is certified as the qualifying party for a licensed entity (which may be a sole proprietorship). The certification stays with the person; Doc. 168 states the certified qualifying party 'is not a licensed contractor' and the entity holds the license. The license fee is $350, with a financial statement or surety bond sized by mechanical group (Group 2, jobs to $100,000: working capital $10,000 or net worth $15,000, or a $15,000 bond). Work over $10,000 requires this license under § 40-11-30. The Board's waiver list accepts North Carolina Plumbing Class 1, Ohio Plumbing and Tennessee CMC or CMC-A exams in place of the plumbing technical exam; other out-of-state licensees take both South Carolina exams.

States South Carolina reciprocates with

Every origin state

Reciprocity 1Experience credit 38No credit 11
Every state's path into South Carolina
StateMechanismNoteVerified
AlabamaExperience credit2026-09-16
AlaskaExperience credit2026-09-16
ArizonaNo creditno state license to transfer2026-09-16
ArkansasExperience credit2026-09-16
CaliforniaExperience credit2026-09-16
ColoradoExperience credit2026-09-16
ConnecticutExperience credit2026-09-16
DelawareExperience credit2026-09-16
District of ColumbiaExperience credit2026-09-16
FloridaExperience credit2026-09-16
GeorgiaExperience credit2026-09-16
HawaiiExperience credit2026-09-16
IdahoExperience credit2026-09-16
IllinoisExperience credit2026-09-16
IndianaExperience credit2026-09-16
IowaExperience credit2026-09-16
KansasNo creditno state license to transfer2026-09-16
KentuckyExperience credit2026-09-16
LouisianaExperience credit2026-09-16
MaineExperience credit2026-09-16
MarylandExperience credit2026-09-16
MassachusettsExperience credit2026-09-16
MichiganExperience credit2026-09-16
MinnesotaExperience credit2026-09-16
MississippiNo creditno state license to transfer2026-09-16
MissouriNo creditno state license to transfer2026-09-16
MontanaExperience credit2026-09-16
NebraskaNo creditno state license to transfer2026-09-16
NevadaNo creditno state license to transfer2026-09-16
New HampshireExperience credit2026-09-16
New JerseyExperience credit2026-09-16
New MexicoExperience credit2026-09-16
New YorkNo creditno state license to transfer2026-09-16
North CarolinaExperience credit2026-09-16
North DakotaExperience credit2026-09-16
OhioExperience credit2026-09-16
OklahomaExperience credit2026-09-16
OregonNo creditno state license to transfer2026-09-16
PennsylvaniaNo creditno state license to transfer2026-09-16
Rhode IslandExperience credit2026-09-16
South DakotaExperience credit2026-09-16
TennesseeReciprocityexplicit agreement2026-09-16
TexasExperience credit2026-09-16
UtahExperience credit2026-09-16
VermontExperience credit2026-09-16
VirginiaExperience credit2026-09-16
WashingtonNo creditno state license to transfer2026-09-16
West VirginiaExperience credit2026-09-16
WisconsinExperience credit2026-09-16
WyomingNo creditno state license to transfer2026-09-16

Getting licensed in South Carolina from scratch

No license yet, or nothing that transfers? This is how South Carolina issues a master plumber license to a first-time applicant.

Verified September 23, 2026· 7 sources

Mechanical Contractor qualifying party, Plumbing classification, by examination

South Carolina has no state journeyman or master plumber license, so there is no lower state tier to hold first: anyone may sit the exams. The individual passes the South Carolina Plumber technical exam and the South Carolina Business Management and Law for Commercial Contractors exam through PSI, with no pre-approval needed to schedule, and then applies to the Contractor's Licensing Board for qualifying party certification with proof of at least two years of full-time plumbing work within the past five years. The license itself is issued to a business (which can be a sole proprietorship) that designates the certified individual as its primary qualifying party, pays the $350 license fee and files a financial statement or surety bond for its job-size group. A current CAGC (formerly MASC) Master Plumber certification earned by examination replaces the Plumber technical exam, but the Business Management and Law exam is always required.

State law requires a score of 70 percent or better on both exams. The Plumber exam has 80 questions (56 correct to pass) in 4 hours, covering plumbing regulations, water heaters, water supply and distribution, backflow prevention, sanitary drainage and venting, storm piping, isometric analysis of drainage, water supply and roof drain systems, and fuel gas piping. References include the 2021 International Plumbing Code or 2021 South Carolina Plumbing Code, the 2021 South Carolina Fuel Gas Code or the 2021 international gas code with South Carolina modifications, and Mathematics for Plumbers and Pipefitters; approved books may be brought in with permanent tabs only. The Business Management and Law exam has 50 questions (35 to pass) in 125 minutes and may be retaken without limit; a technical exam may be taken twice in 12 months and then once every six months. Someone who has not held a qualifying party certification for four or more consecutive years must pass the exams again. For residential-only work, the Residential Builders Commission's Residential Plumber license is a separate credential with its own exams (one year of residential plumbing experience within the past five years, $135 application fee, $220 license fee). Cities and counties may require their own business licenses and permits.

Trade exam
Required
Law / code exam
Required
Exam given by
PSI
Exam format
Open book
Passing score
70%
Renewal
Every 2 years

Who can apply

  • You must document at least 2 years of qualifying work experience.Documented on Work Experience Affidavits (Doc. 167) from current or former employers. Experience should primarily reflect commercial work, and out-of-state experience counts.
  • To be designated primary qualifying party, the individual must serve in a management capacity for the licensed business and be actively involved in supervising its plumbing work

Other ways to qualify

Each of these replaces the requirements above. You only need one.

PHCC Academy of North Carolina apprenticeship

Instead of the Work Experience Affidavits, an applicant may submit the Certificate of Achievement from a completed PHCC Academy of North Carolina apprenticeship program in heating, air conditioning or plumbing. The same exams are required.

  • Complete a registered apprenticeship: Completion of a PHCC Academy of North Carolina apprenticeship program (plumbing), shown by its Certificate of Achievement.
  • To be designated primary qualifying party, the individual must serve in a management capacity for the licensed business and be actively involved in supervising its plumbing work

Steps to get licensed

  1. 1Trade exam. Pass the destination's trade exam. South Carolina Plumber exam (PSI): 80 questions, 4 hours, open book, 70 percent to pass. A current CAGC or MASC Master Plumber certification issued by examination is accepted instead..
  2. 2Law / code exam. Pass a law, rules, or code exam. South Carolina Business Management and Law for Commercial Contractors exam (PSI): 50 questions, 125 minutes, open book, 70 percent to pass.
  3. 3Exam fee. Pay the exam fee ($75). PSI fee for the South Carolina Plumber exam, per attempt.
  4. 4Exam fee. Pay the exam fee ($75). PSI fee for the Business Management and Law for Commercial Contractors exam, per attempt.
  5. 5Other. Primary Qualifying Party/Qualifying Party Initial Application (Doc. 168) with PSI pass sheets, Work Experience Affidavits (or the PHCC Academy certificate), a copy of a government photo ID and Social Security card, a notarized Verification of Lawful Presence and the company acknowledgement affidavit. The Board lists no separate certification fee..
  6. 6License fee. Pay the license or certificate fee ($350). Mechanical Contractor license fee, non-refundable, paid by the business with the General and Mechanical Contractor application (Doc. 165).
  7. 7Financial responsibility. Show financial responsibility. Financial statement with a balance sheet dated within 12 months showing the working capital or net worth for the license group: Group 1 (jobs to $35,000) $3,500 or $7,000; Group 2 ($100,000) $10,000 or $15,000; Group 3 ($200,000) $20,000 or $30,000; Group 4 ($400,000) $40,000 or $60,000; Group 5 (unlimited) $200,000 or $300,000. Groups 1 and 2 may use the owner-prepared statement (Doc. 172); higher groups need a CPA-compiled or audited statement..
  8. 8Surety bond. Post a surety bond ($7,000) (if applicable). Surety bond accepted instead of the financial statement, from $7,000 for Group 1 to $15,000 for Group 2, $30,000 for Group 3, $60,000 for Group 4 and $300,000 for Group 5.
  9. 9Business license. Obtain a business license (if applicable). For a corporation, LLC or partnership, a certificate of existence (or good standing) or of authority from the South Carolina Secretary of State; not required for a sole proprietorship.
  10. 10Background check. Complete a background check (if applicable). A criminal background report dated within 30 days (SLED for South Carolina) is required only from applicants who answer yes to a background question on the application.

Published fees on this path total $500, excluding exam-vendor fees, bonds, and insurance.

Keeping it active

Every 2 years and a $135 renewal fee.

Mechanical Contractor licenses expire October 31 of odd-numbered years; the next renewal opens in August 2027. The business must file a current financial statement or keep its surety bond in force before renewing online. Late fees of $100 to $200 apply to renewals postmarked November 1 through January 31. The Board's renewal and fee pages list no continuing-education requirement.

Exam preparation

Most boards contract PSI, Prov, or ICC for exams. Check which code edition the exam is written to before buying a prep course.

  • Trade exam
  • Law / code exam
  • Exam fee · $75
  • Exam fee · $75

Surety bond

A license or contractor bond is bought from a surety, not the state. Price is a small percentage of the bond amount and depends on your credit.

  • Surety bond · $7,000 · if applicable

Business registration

If you plan to contract in your own name, budget for a business license or entity registration on top of the trade license.

  • Business license · if applicable

Sources for this section

  1. S.C. Code of Laws Title 40, Chapter 11 - Contractors · S.C. Code Ann. Sections 40-11-30, 40-11-230, 40-11-260, 40-11-262, 40-11-290, 40-11-410 · South Carolina Legislature · Statute · verified September 23, 2026
  2. General and Mechanical Contractor Application for Licensure and Instructions (Doc. 165, 12/22/2025 v2.2) · South Carolina Department of Labor, Licensing and Regulation (LLR) · Form · verified September 23, 2026
  3. General and Mechanical Contractors - Primary Qualifying Party (PQP) and Qualifying Party (QP) Initial Application (Doc. 168, 12/19/2025 v2.1) · South Carolina Department of Labor, Licensing and Regulation (LLR) · Form · verified September 23, 2026
  4. SC Contractor’s Licensing Board - Fees · South Carolina Department of Labor, Licensing and Regulation (LLR) · Agency Page · verified September 23, 2026
  5. SC Contractor’s Licensing Board - Licensure with the Board (application, qualifying parties, exams, group limits, financial statements, bonds) · South Carolina Department of Labor, Licensing and Regulation (LLR) · Agency Page · verified September 23, 2026
  6. SC Contractor’s Licensing Board - Renew My License (2026-2028 General Contractor renewals) · South Carolina Department of Labor, Licensing and Regulation (LLR) · Agency Page · verified September 23, 2026
  7. PSI - South Carolina Contractor’s Licensing Board Commercial Contractors Candidate Information Bulletin · PSI Services LLC for the SC Contractor’s Licensing Board · Form · verified September 23, 2026

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