Missouri to South Carolina: master plumber license reciprocity
Missouri does not issue a statewide master plumber license, so there is nothing to transfer. Here is South Carolina's standard path for out-of-state applicants.
Your origin state does not issue a statewide license at this level, so there is no license to transfer. The destination's standard out-of-state path is shown; expect to meet it in full.
Reference only, not legal advice. Rules change; confirm with the licensing board before you apply. Full disclaimer.
Licensure by examination with credit for out-of-state experience (states without a PB waiver exam)
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
A plumbing contractor from a state (or classification) whose exam is not listed for PB on the Board's waiver list is told: 'you are not eligible for waiver/reciprocity. You will be required to take the SC exams.' The applicant passes the South Carolina Plumbing technical exam through PSI and the South Carolina Business Management & Law for Commercial Contractors exam, then files the Qualifying Party application (Doc. 168) with proof of at least 2 years of full-time work experience performed within the past 5 years in the plumbing classification, which may have been earned in any state and should primarily reflect commercial work (a PHCC Academy of North Carolina apprenticeship certificate covering plumbing is an alternative). The business files the Mechanical Contractor license application with the $350 licensure fee and a financial statement (or surety bond) meeting the group limit it wants. Section 40-11-290 separately allows the Board to exempt the technical exam for an applicant who verifies passing an essentially identical exam in another state even without a reciprocal agreement, but the Board's published waiver list and instructions do not describe a process for invoking it outside the listed exams. Ohio, Georgia and other states named on the cover of the 2019 waiver PDF are not treated as plumbing Reciprocity partners here because no PB exam mapping was recorded on the extract used for this file.
PSI exam fees are paid directly to PSI and are not published on LLR's pages. The Board's licensure page shows a $350 licensure fee but no separate qualifying-party application fee. The current Mechanical Group financial thresholds on the licensure page (Group 2: $100,000 per job, $10,000 working capital or $15,000 net worth, $15,000 bond) differ from the 2019 waiver document's table; the web page is treated as current. Typical timeline is an estimate; LLR publishes no processing time. Residential specialty plumber fees and exam-waiver states were not confirmed (resplumb.aspx blocked).
At a glance
- Trade exam
- Required
- Law / code exam
- Required
- Out-of-state hours
- Count toward eligibility
- Typical processing
- About 90 days
What you must already have
- At least 2 years of full-time work experience in the plumbing classification, performed within the past 5 years, documented on Work Experience Affidavits (Doc. 167); out-of-state experience is accepted. A PHCC Academy of North Carolina apprenticeship certificate (Heating, Air Conditioning and Plumbing) is an alternative listed on Doc. 168.
What you'll do to get licensed in South Carolina
- 1Trade exam. Pass the destination's trade exam. South Carolina Plumbing (PB) technical examination through PSI, unless a listed waiver exam applies.
- 2Law / code exam. Pass a law, rules, or code exam. South Carolina Business Management & Law for Commercial Contractors examination (PSI), required of all applicants.
- 3Exam fee. Pay the exam fee. PSI examination fees paid directly to PSI at registration (amounts not published by LLR).
- 4License fee. Pay the license or certificate fee ($350). Mechanical Contractor licensure fee (license issued to the entity the qualifying party certifies).
- 5Other. Financial statement dated within 12 months showing working capital of $10,000 or net worth of $15,000 for Mechanical Group 2 (higher groups require more), or a surety bond in lieu.
- 6Surety bond. Post a surety bond ($15,000) (if applicable). Surety bond accepted in lieu of the financial statement for Mechanical Group 2 (larger bonds for higher groups).
- 7Other. Qualifying Party initial application (Doc. 168) with exam score sheets, Work Experience Affidavits, ID, Social Security card and notarized Verification of Lawful Presence.
- 8Other. SC Examination Waiver form completed by the origin board only if claiming a listed PB waiver exam; copies of licenses or exam results are not accepted.
Published fees on this path total $350, excluding exam-vendor fees, bonds, and insurance.
What you'll need to buy or arrange
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
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 · $15,000 · if applicable
How South Carolina licenses master plumbers
South Carolina master plumber · “Mechanical Contractor, Plumbing (PB) classification - Qualifying Party certification”
Statewide license
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 plumbing technical exam through PSI (unless a listed waiver exam applies) 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. Licensees from other states take the South Carolina plumbing technical exam and the Business Management & Law exam.
Why Missouri has nothing to transfer
Missouri master plumber
Licensed by cities and counties
Missouri issues no statewide master plumber or plumbing contractor license. RSMo chapter 341 leaves plumber licensing to cities over 15,000 and first-classification counties, whose boards examine master plumbers, set fees and license terms and (in counties) require master plumber and master drainlayer surety bonds; no state agency licenses the trade and the voluntary statewide contractor license that exists for electrical work has no plumbing counterpart. The master credential therefore exists only locally: Springfield's Master Plumber certification (4 years as a certified journeyman or 10 years' experience, ICC exam, $50), Kansas City's plumbing contractor license qualified by a supervisor holding a certificate of qualification (Prometric or ICC exam, $60 application, $181 four-year renewal; contractor license $55 application, $181 issuance), St. Louis County's Master Plumber license and certified contractor list, and the City of St. Louis Plumbers and Drainlayers Board of Examiners' master plumber and drainlayer licenses. An out-of-state master plumber license carries no state-level recognition; Springfield accepts an identical ICC, Prometric, Experior or Block exam score of 75% or better in place of retesting and Kansas City may accept a comparable exam it deems equivalent, while the St. Louis County and City of St. A master arriving from another state should expect to qualify in each jurisdiction separately and then obtain that jurisdiction's contractor license and bond to pull permits.
How local licensing works in Missouri
How local licensing works. There is no state plumbing board. Under RSMo chapter 341, city boards of examiners (cities over 15,000) and county boards of plumbing and sewer inspection (first-classification counties) examine master plumbers; § 341.170 sets the county master plumber qualifications, § 341.180 the application fees, license terms and re-examination rules, and § 341.200 requires master plumbers and master drainlayers to post surety bonds. The master license is the credential that lets a plumber pull permits and run a plumbing business, and each jurisdiction issues and enforces its own.
St. Louis County. The Plumbing Licensing office (41 South Central Avenue, Clayton, 314-615-3741) issues Master Plumber licenses and publishes a Certified Contractors list; the Board of Plumbing Examiners meets the first Thursday of each month at 8:00 a.m., and renewals carry PEU continuing-education requirements. Louis.** The Building Division's Plumbers and Drainlayers Board of Examiners licenses master plumbers and drainlayers and reviews licensing matters and complaints for plumbing and drainlaying work in the city; permits are issued to city-licensed contractors. Every licensed contractor must employ a full-time supervisor who holds a Kansas City certificate of qualification in the plumbing trade, obtained on an application with notarized references and a passing score from a recognized agency such as Prometric or ICC ($60 application, first four-year certificate free, $181 renewal); the city 'may accept comparable examinations from other jurisdictions if deemed equivalent or superior'. Whether a separately titled master plumber license, plumbing-specific experience hours or named reciprocity with Kansas jurisdictions exist could not be confirmed because kcmo.gov and both fallback routes were blocked on 2026-09-16.
Springfield. Building Development Services certifies Master Plumbers: 4 years as a certified journeyman plumber or 10 years of satisfactory experience in the trade, documented on notarized employer experience forms and approved by the board (first Thursday monthly, 5:00 p.m., Busch Building; approval to test good for one year). The exam is the ICC master plumber exam through Pearson Vue (about $125 paid to Pearson Vue), 75% to pass; the certification card costs $50 with $50 annual renewal, and a master must file a Master Registration form to qualify a contracting business (Master Resignation form on leaving). Out-of-state treatment: 'Reciprocity from another jurisdiction' applicants submit the same experience documentation plus an exam score notification of 75% or better from Prometric, Experior, Block or ICC (Pearson Vue) for the identical exam Springfield requires; otherwise they test. Springfield also certifies Master Gas fitters (4 years as a certified gas journeyman, or 4 years as a master mechanic or plumber plus 2 years as a gas journeyman).
Columbia and others. Columbia, St.
- St. Louis County (Transportation and Public Works, Plumbing Licensing / Board of Plumbing Examiners)
- City of St. Louis (Building Division, Plumbers and Drainlayers Board of Examiners)
- Kansas City (City Planning and Development, contractor licensing and certificates of qualification)
- Springfield (Building Development Services, Trade Certifications)
- Columbia (Community Development, Building and Site Development)
Common questions
- Do I have to take the South Carolina master plumber exam if I'm licensed in Missouri?
- Yes. South Carolina requires the trade exam on this path, plus a law or code exam.
- What does it cost to get a South Carolina master plumber license from Missouri?
- Published fees on this path total $350, not counting exam vendor fees or bonds.
- Do my Missouri work hours count in South Carolina?
- Yes. Documented out-of-state experience counts toward South Carolina's eligibility requirements.
- How long does the application take?
- The board's published or typical processing time is about 90 days.
- Does it work the other way, from South Carolina to Missouri?
- Not necessarily. Reciprocity is directed. Going from South Carolina to Missouri, the mechanism is not applicable.
Sources
- S.C. Code of Laws Title 40, Chapter 11 - Contractors · S.C. Code Ann. §§ 40-11-30, 40-11-290, 40-11-410 · South Carolina Legislature · Statute · verified September 16, 2026
- General and Mechanical Contractors - Primary Qualifying Party (PQP) and Qualifying Party (QP) Initial Application, Doc. 168 (12/31/2025 v2.3) · South Carolina Department of Labor, Licensing and Regulation (LLR) · Form · verified September 16, 2026
- SC Contractor's Licensing Board - Licensure (classifications, exams, waiver/reciprocity, fees) · South Carolina Department of Labor, Licensing and Regulation (LLR) · Agency Page · verified September 16, 2026
- SC Contractor's Licensing Board - Reciprocity/Waiver Agreements (Rev. 02/2019) · South Carolina Department of Labor, Licensing and Regulation (LLR) · Agreement Document · verified September 16, 2026
- South Carolina Residential Builders Commission - home page · South Carolina Department of Labor, Licensing and Regulation (LLR) · Agency Page · verified September 16, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.