Delaware to Maine: journeyman plumber license reciprocity
Delaware does not issue a statewide journeyman plumber license, so there is nothing to transfer. Here is Maine'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 endorsement (32 M.R.S. §3501-C); examination if origin requirements are not substantially equivalent
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
Maine has a statutory endorsement path for plumbers and no published list of signed reciprocity partners was found. Under 32 M.R.S. §3501-C the Plumbers' Examining Board must establish licensure by endorsement in accordance with 10 M.R.S. §8003-H: an applicant who holds a substantially equivalent journeyman-level license in another U.S. jurisdiction, is in good standing everywhere licensed, and pays the fee may be licensed without sitting Maine's journeyman examination, unless a jurisprudence exam is required by law or rule (none is identified in chapter 49). An applicant whose origin license is not substantially equivalent applies under §3501(1-A) and (2): sworn application, §3501-B fee, documented 4,000 hours (or 2,000 journeyman-in-training hours) or the equivalent, and a passing grade on the board-approved journeyman exam. Out-of-state hours can count as 'the equivalent' of licensed trainee time. No municipal plumber license is a Maine credential.
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.
At a glance
- Trade exam
- Waived
- Law / code exam
- Not required
- Out-of-state hours
- Count toward eligibility
What you must already have
- Your Delaware license must be active and in good standing.
- You must have no disciplinary action or unresolved complaints on your record.
- Origin jurisdiction's journeyman requirements must be substantially equivalent to Maine's (10 M.R.S. §8003-H). Maine's own exam pathway is 4,000 hours as a licensed trainee under a master, or the equivalent, plus a passing grade on the journeyman examination (32 M.R.S. §3501(2)).
- You must document at least 4,000 hours of qualifying work experience.Statutory exam-route minimum: at least 2 years / 4,000 hours as a licensed trainee plumber under a master, or the equivalent; alternatively 2,000 hours as a journeyman-in-training under a master within 4 years of the JIT license. Endorsement applicants meet this only insofar as the origin pathway is substantially equivalent.
What you'll do to get licensed in Maine
- 1Application fee. Pay the application fee. Fee set under 32 M.R.S. §3501-B (and OPOR 02-041 CMR ch. 10). Statute opened: fees by rule, not to exceed $350 biennially..
- 2License fee. Pay the license or certificate fee. Journeyman Plumber license fee under 32 M.R.S. §3501-B..
- 3Other. Sworn application on a form prescribed by the board, with proof of the valid, active out-of-state license (license verification from the issuing board).
- 4Trade exam. Pass the destination's trade exam (if applicable). Board-approved journeyman plumber examination with a passing grade determined by the board (32 M.R.S. §3501(1-A), (2)) — required only if endorsement under §3501-C is not available..
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 · if applicable
How Maine licenses journeyman plumbers
Maine journeyman plumber · “Journeyman Plumber”
Statewide license
Maine issues a statewide Journeyman Plumber license through the Plumbers' Examining Board in OPOR (32 M.R.S. ch. 49). By examination an applicant files a sworn application, pays the fee set under §3501-B, documents at least two years / 4,000 hours as a licensed trainee plumber under a master (or the equivalent), or 2,000 hours as a journeyman-in-training under a master within four years of the JIT license, and obtains a passing grade on the board-approved journeyman examination. The board also issues a one-time, four-year nonrenewable journeyman-in-training license after one academic year of approved plumbing instruction plus the same exam, a limited plumber license, and a trainee plumber license without examination. Out-of-state journeymen are directed to licensure by endorsement under 32 M.R.S. §3501-C and 10 M.R.S. §8003-H when the origin jurisdiction's requirements are substantially equivalent; otherwise they apply by examination with comparable hours credited as 'the equivalent' of Maine trainee time.
Why Delaware has nothing to transfer
Delaware journeyman plumber
No individual license at this level
Delaware does not issue a journeyman or journeyperson plumber license. The Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners licenses only master plumbers (and master HVACR / master HVACR restricted), and 24 Del. C. § 1807(c)(1) lets an apprentice, journeyman, mechanic or other person provide plumbing services without a Board license while working under the supervision of a master plumber who is their employer or a full-time employee of the same business. An out-of-state journeyman plumber license therefore has nothing to transfer to in Delaware and is neither required nor recognized as a Delaware credential for employment. Delaware's own 'journeyman's certificate' in 24 Del. C. § 1808(a)(1) is a certificate of completion from a plumbing apprenticeship that meets or exceeds federal BAT/OA standards, issued in any state: it is an experience credential used toward the Master Plumber license, not a license. With that certificate, two years of post-apprenticeship work under a master plumber (or a similar-level licensee in another state) qualifies an applicant for the master exam; without it, seven years of such supervised experience plus the apprenticeship equivalency (bypass) tests are required. Out-of-state journeyman hours gained under a licensed master count toward those master-exam experience requirements.
Common questions
- Do I have to take the Maine journeyman plumber exam if I'm licensed in Delaware?
- No. The trade exam is waived on this path.
- Do my Delaware work hours count in Maine?
- Yes. Documented out-of-state experience counts toward Maine's eligibility requirements.
- Does it work the other way, from Maine to Delaware?
- Not necessarily. Reciprocity is directed. Going from Maine to Delaware, the mechanism is not applicable.
Sources
- Maine Plumbers' Examining Board (Office of Professional and Occupational Regulation) - expected board home · Maine Office of Professional and Occupational Regulation (OPOR), Department of Professional and Financial Regulation · Agency Page · verified September 16, 2026
- Maine Office of Professional and Occupational Regulation - Professions and Boards · Maine Office of Professional and Occupational Regulation (OPOR) · Agency Page · verified September 16, 2026
- 10 M.R.S. §8003-H - Licensure by endorsement (OPOR general provision) · 10 M.R.S. §8003-H · Maine Legislature, Office of the Revisor of Statutes · Statute · verified September 16, 2026
- 32 M.R.S. §3501 - Issuance of licenses (journeyman, master, journeyman-in-training, trainee) · 32 M.R.S. §3501 · Maine Legislature, Office of the Revisor of Statutes · Statute · verified September 16, 2026
- 32 M.R.S. §3501-B - Fees (Plumbers' Examining Board) · 32 M.R.S. §3501-B · Maine Legislature, Office of the Revisor of Statutes · Statute · verified September 16, 2026
- 32 M.R.S. §3501-C - Licensure by endorsement (Plumbers' Examining Board) · 32 M.R.S. §3501-C; PL 2021, c. 642, §16 · Maine Legislature, Office of the Revisor of Statutes · Statute · verified September 16, 2026
- 32 M.R.S. Chapter 49 - Plumbers (table of contents) · 32 M.R.S. ch. 49 · Maine Legislature, Office of the Revisor of Statutes · Statute · verified September 16, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.