Oregon to Maine: journeyman plumber license reciprocity
Maine has no reciprocity agreement with Oregon. A Oregon journeyman plumber applies by endorsement.
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
The board reviews your out-of-state credentials case by case. Some exam is usually still required, often only a law or code exam.
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 Oregon 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.
Common questions
- Do I have to take the Maine journeyman plumber exam if I'm licensed in Oregon?
- No. The trade exam is waived on this path.
- Do my Oregon 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 Oregon?
- Not necessarily. Reciprocity is directed. Going from Maine to Oregon, the mechanism is experience credit.
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.