Tennessee to Maryland: journeyman plumber license reciprocity
Tennessee does not issue a statewide journeyman plumber license, so there is nothing to transfer. Here is Maryland'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.
Out-of-state journey plumber by examination (PSI), unless a reciprocal license applies
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
For any origin that is not the District of Columbia, WSSC, or Baltimore County, Maryland does not waive the journey plumber exam. The License Requirements page sets eligibility at four years as an apprentice plumber plus 7,500 hours of apprentice work, a 32-hour backflow prevention certification, and the PSI journey exam. Upload proof of hours, backflow certification and a driver's license to PSI's Client Portal, then register at test-takers.psiexams.com/mdplu (centers in Baltimore, College Park, Hagerstown, Lanham and Salisbury). After passing, apply for the original Journeyman Plumber/Gas Fitter license and pay the $43.50 fee (July 1, 2025 schedule). Reciprocal licenses for DC, WSSC and Baltimore County are authored as agreements (WSSC/Baltimore County are municipal origins, not state codes). There is no published separate Maryland law or business exam on the pages reviewed.
Occ. & Prof. qualification and waiver sections after §12-101. WSSC and Baltimore County are Maryland municipal issuers, not origin state codes; they are recorded via acceptsMunicipalOriginLicenses and municipalNotes rather than agreements.origin. Insurance on plinsure.shtml is written for masters. Do not treat this default path as Reciprocity.
At a glance
- Trade exam
- Required
- Law / code exam
- Not required
- Out-of-state hours
- Count toward eligibility
What you must already have
- You must have held your Tennessee license for at least 4 years.Four years as an apprentice plumber (Maryland License Requirements page).
- You must document at least 7,500 hours of qualifying work experience.7,500 hours of work as an apprentice plumber (Maryland License Requirements page). Out-of-state apprentice hours are uploaded to PSI as proof of hours worked.
- 32-hour backflow prevention certification, uploaded to PSI with the exam application
What you'll do to get licensed in Maryland
- 1Trade exam. Pass the destination's trade exam. Maryland Journeyman Plumber/Gas Fitter examination administered by PSI after the applicant uploads eligibility documents; required before applying for the license..
- 2Exam fee. Pay the exam fee. Fee, eligibility details, and processing steps are not published in a form we can list here. Please see the sources on this page to find out more..
- 3License fee. Pay the license or certificate fee ($43.50). Original Journeyman Plumber/Gas Fitter license fee, updated July 1, 2025 (renewal is also $43.50).
- 4Other. Copy of backflow certification, uploaded to PSI's Client Portal with the exam application.
- 5Other. Copy of driver's license, uploaded to PSI's Client Portal.
- 6Other. Proof of hours worked, uploaded to PSI's Client Portal.
Published fees on this path total $43.50, 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
- Exam fee
How Maryland licenses journeyman plumbers
Maryland journeyman plumber · “Journeyman Plumber/Gas Fitter”
State license plus local requirements
Issued by Maryland State Board of Plumbing (Department of Labor)
Maryland issues a statewide Journeyman Plumber/Gas Fitter license (statutory name: journey plumber) through the State Board of Plumbing in the Department of Labor. A journey plumber provides plumbing services under the direction and control of a master plumber or limited master plumber. Qualification on the Board's License Requirements page is four years as an apprentice plumber plus 7,500 hours of apprentice work, a 32-hour backflow prevention certification, and the PSI journey exam. State plumber licenses are required throughout Maryland except Baltimore County and the Washington Suburban Sanitary Commission (WSSC) service area in Montgomery and Prince George's Counties, which issue their own plumber licenses. The original license fee is $43.50 (updated July 1, 2025). The Board issues reciprocal Journey Plumber/Gas Fitter licenses to holders licensed by the District of Columbia, WSSC, or Baltimore County (WSSC and Baltimore County applicants must hold both plumbing and gas licenses obtained by examination). Apprentice plumber licenses may be renewed for only two consecutive cycles before the journey exam is required (Bus. Occ. & Prof. §12-308.1).
How local licensing works in Maryland
The Board's home page states that State plumber and natural-gas-fitter licenses are required throughout Maryland except (1) Baltimore County and (2) areas served by WSSC in Prince George's and Montgomery Counties; those two jurisdictions issue their own licenses and have their own plumbing code. Propane-gas-fitter certificates from the State Board are valid statewide, including those counties. Inbound plumbers who will work only in Montgomery or Prince George's County should apply to WSSC, not (or not only) to the State Board; work only in Baltimore County goes through Baltimore County. Work in the remaining counties and Baltimore City uses the State Board license. The reciprocal-license page states the Board may issue a State journey or master plumber license to a person already licensed by WSSC or Baltimore County if that person holds both plumbing and gas licenses obtained by examination.
- Washington Suburban Sanitary Commission (Montgomery County)
- Washington Suburban Sanitary Commission (Prince George's County)
- Baltimore County
Why Tennessee has nothing to transfer
Tennessee journeyman plumber · “Journeyman plumber (city or county card only)”
Licensed by cities and counties
Tennessee has no statewide journeyman plumber license. The Board for Licensing Contractors licenses plumbing at two other levels only: the Limited Licensed Plumber (LLP), a personal license for projects under $25,000 in municipalities that use the Division of Fire Prevention for permits and inspections (T.C.A. § 62-6-403; photo ID, SSN, Prov LLP trade exam, $75 initial fee; general maintenance under $500 is exempt), and the contractor license with the CMC-A (plumbing) or CMC (full mechanical) classification, a business license required for plumbing work of $25,000 or more. The Board's LLP page tells applicants to check first whether the local government accepts the LLP or runs its own licensing. Journeyman plumber cards therefore exist only where a city or county examines plumbers itself. Metro Nashville's Mechanical, Plumbing, and Electrical Examiners and Appeals Board issues journeyman plumber (and apprentice plumber) certificates; Knoxville registers State Contractors, homeowners, or Unlicensed/State Limited License (LLE or LLP) holders to pull permits and does not publish a separate city journeyman plumber card on that page. An out-of-state journeyman plumber license has no state-level recognition in Tennessee: the Board's trade-exam-waiver form cannot be used for the LLP, and none of the city pages reviewed here publish a reciprocity or exam-waiver path for inbound journeymen.
How local licensing works in Tennessee
How local licensing works. T.C.A. Title 62, Chapter 6 gives the Board the CMC/CMC-A contractor license (business, $25,000 and up, accepted statewide for contracting) and the LLP (individual, under $25,000, only where the State Fire Marshal inspects). Cities and counties that run their own plumbing inspection programs may require a local journeyman or master plumber card instead of, or in addition to, the LLP. Each local card is valid only in that jurisdiction. The Board publishes no journeyman-to-journeyman reciprocity.
Nashville / Davidson County. The Mechanical, Plumbing, and Electrical Examiners and Appeals Board (Metro Code Chapter 2.76) examines applicants for master plumber, journeyman plumber and apprentice plumber certificates and issues those certificates (Codes and Building Safety, 800 President Ronald Reagan Way; 615-862-6500). Expect to sit Metro's exam unless Codes staff confirm otherwise.
Knoxville. Permits are pulled under a State Contractor registration, a Homeowner registration, or an Unlicensed / State Limited License (LLE or LLP) registration. The Plans Review & Inspections page does not describe a city-issued journeyman plumber license. No experience hours published. No out-of-state exam waiver. Accepted only where the Division of Fire Prevention inspects; many larger cities do not use that program.
- Nashville / Davidson County (Codes and Building Safety)
- Knoxville (Plans Review & Inspections)
- Chattanooga (Land Development Office)
- Memphis / Shelby County (Office of Construction Code Enforcement)
Common questions
- Do I have to take the Maryland journeyman plumber exam if I'm licensed in Tennessee?
- Yes. Maryland requires the trade exam on this path.
- How long do I need to have held my Tennessee license?
- At least 4 years before applying.
- What does it cost to get a Maryland journeyman plumber license from Tennessee?
- Published fees on this path total $43.50, not counting exam vendor fees or bonds.
- Do my Tennessee work hours count in Maryland?
- Yes. Documented out-of-state experience counts toward Maryland's eligibility requirements.
- Does it work the other way, from Maryland to Tennessee?
- Not necessarily. Reciprocity is directed. Going from Maryland to Tennessee, the mechanism is not applicable.
Sources
- Md. Code, Business Occupations and Professions §12-101 - Definitions (State Board of Plumbing licenses) · Md. Code, Bus. Occ. & Prof. §12-101 · Maryland General Assembly · Statute · verified September 16, 2026
- Maryland Department of Labor - Division of Occupational and Professional Licensing (boards index) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 16, 2026
- Maryland State Board of Plumbing - Taking the Exam (PSI) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 16, 2026
- Maryland State Board of Plumbing - Frequently Asked Questions (hub) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Faq · verified September 16, 2026
- Maryland State Board of Plumbing - Forms and Fees (updated July 1, 2025) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 16, 2026
- Maryland State Board of Plumbing - Home · Md. Code, Bus. Occ. & Prof. Title 12 · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 16, 2026
- Maryland State Board of Plumbing - Licensing Applications · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 16, 2026
- Maryland State Board of Plumbing - Apply for a Reciprocal License · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 16, 2026
- Maryland State Board of Plumbing - License Requirements · Maryland Department of Labor, Division of Occupational and Professional Licensing · 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.