⚠️ Important: This comparison is based on published state licensing requirements and may not reflect recent changes. Reciprocity and transfer rules change frequently and are evaluated on a case-by-case basis by state licensing boards. This tool is for research purposes only and does not constitute legal or professional advice. Always contact Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC) directly to confirm current transfer requirements before submitting any applications or fees.

Transfer Your Plumber License: Maine → New Hampshire

Everything you need to know about transferring your plumber license from Maine to New Hampshire

Reciprocity Available

Endorsement

Requirements Comparison

Requirement	Maine (ME)	New Hampshire (NH)
Education Requirements	High school diploma or GED	High school diploma or GED
Exam Requirements	Provider: PROV, Inc.	Provider: Prov (effective 5/12/2025)
Experience Requirements●	apprentice: No prior experience; age 16+; Maine calls this a 'Trainee Plumber' license; journeyman: Path A: minimum 2 years / 4,000 hours as a licensed trainee plumber under supervision of a licensed master plumber; Path B: minimum 2,000 hours as a licensed journeyman-in-training under supervision of a licensed master plumber, within 4 years of J-i-T license issuance; master: Path A: minimum 1 year / 2,000 hours as a licensed journeyman plumber; Path B: minimum 4 years / 8,000 hours as a licensed trainee plumber under supervision of a licensed master plumber	apprentice: Registration required; no prior experience; journeyman: 4-year plumbing apprenticeship (8,000 hours per ServiceTitan — CONFLICTING: 3,000 hours per other source; verify against OPLC rules); must obtain apprenticeship completion certificate + letter from supervising licensed master plumber; master: Must hold journeyman license for at least 6 months (unusually short — most states require 1-4 years); must provide letter from licensed master plumber certifying competence
Fees	apprentice registration: $100 initial license fee; $100 biennial renewal fee; journeyman license: $200; master license: $200; exam fee: $65-$75; renewal fee: $200; total initial fees: $286-$296; confidence: high	apprentice registration: $88-$90; journeyman license: $198; master license: $310; exam fee: $90; renewal fee: $180 (journeyman) / $300 (master); total initial fees: $288; confidence: high
Renewal / CE Requirements●	Period: 2 years (biennial, based on first licensure date) for all license types; CE hours: null; Fee: $200	Period: 2 years; CE hours: 6; Fee: $180 (journeyman) / $300 (master)

Data verified as of 2026-04-03. Requirements may have changed since verification.

Key Differences

New Hampshire accepts out-of-state plumber licenses via reciprocity/endorsement.
Experience differs: Maine — apprentice: No prior experience; age 16+; Maine calls this a 'Trainee Plumber' license; journeyman: Path A: minimum 2 years / 4,000 hours as a licensed trainee plumber under supervision of a licensed master plumber; Path B: minimum 2,000 hours as a licensed journeyman-in-training under supervision of a licensed master plumber, within 4 years of J-i-T license issuance; master: Path A: minimum 1 year / 2,000 hours as a licensed journeyman plumber; Path B: minimum 4 years / 8,000 hours as a licensed trainee plumber under supervision of a licensed master plumber; New Hampshire — apprentice: Registration required; no prior experience; journeyman: 4-year plumbing apprenticeship (8,000 hours per ServiceTitan — CONFLICTING: 3,000 hours per other source; verify against OPLC rules); must obtain apprenticeship completion certificate + letter from supervising licensed master plumber; master: Must hold journeyman license for at least 6 months (unusually short — most states require 1-4 years); must provide letter from licensed master plumber certifying competence.
Renewal differs: Maine — Period: 2 years (biennial, based on first licensure date) for all license types; CE hours: null; Fee: $200; New Hampshire — Period: 2 years; CE hours: 6; Fee: $180 (journeyman) / $300 (master).

Next Steps

1
Contact the destination state board to confirm current transfer/reciprocity requirements. Visit Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC) →
2
Request credential verification from Plumbers' Examining Board (under Office of Professional and Occupational Regulation, Department of Professional & Financial Regulation) — this often takes 4–8 weeks. Visit Maine board →
3
Gather required documentation (education transcripts, experience logs, exam scores).
4
Submit your application to Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC).

These steps are general guidance based on common transfer processes. Your state may have a different process. Always follow the instructions provided by your state licensing board.

New Hampshire Licensing Board

Board: Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC)
Website: https://oplc.nh.gov/mechanical-safety-and-licensing-board
Phone: (603) 271-2152

Contact Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC) to confirm current transfer requirements →

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LicenseMap is a research tool and does not provide legal, financial, or professional licensing advice. Licensing requirements vary by state and change frequently. Verify all information directly with your state licensing board before making licensing decisions.

Requirements Comparison

Requirement	Maine (ME)	New Hampshire (NH)
Education Requirements	High school diploma or GED	High school diploma or GED
Exam Requirements	Provider: PROV, Inc.	Provider: Prov (effective 5/12/2025)
Experience Requirements●	apprentice: No prior experience; age 16+; Maine calls this a 'Trainee Plumber' license; journeyman: Path A: minimum 2 years / 4,000 hours as a licensed trainee plumber under supervision of a licensed master plumber; Path B: minimum 2,000 hours as a licensed journeyman-in-training under supervision of a licensed master plumber, within 4 years of J-i-T license issuance; master: Path A: minimum 1 year / 2,000 hours as a licensed journeyman plumber; Path B: minimum 4 years / 8,000 hours as a licensed trainee plumber under supervision of a licensed master plumber	apprentice: Registration required; no prior experience; journeyman: 4-year plumbing apprenticeship (8,000 hours per ServiceTitan — CONFLICTING: 3,000 hours per other source; verify against OPLC rules); must obtain apprenticeship completion certificate + letter from supervising licensed master plumber; master: Must hold journeyman license for at least 6 months (unusually short — most states require 1-4 years); must provide letter from licensed master plumber certifying competence
Fees	apprentice registration: $100 initial license fee; $100 biennial renewal fee; journeyman license: $200; master license: $200; exam fee: $65-$75; renewal fee: $200; total initial fees: $286-$296; confidence: high	apprentice registration: $88-$90; journeyman license: $198; master license: $310; exam fee: $90; renewal fee: $180 (journeyman) / $300 (master); total initial fees: $288; confidence: high
Renewal / CE Requirements●	Period: 2 years (biennial, based on first licensure date) for all license types; CE hours: null; Fee: $200	Period: 2 years; CE hours: 6; Fee: $180 (journeyman) / $300 (master)

Data verified as of 2026-04-03. Requirements may have changed since verification.

Key Differences

New Hampshire accepts out-of-state plumber licenses via reciprocity/endorsement.

Experience differs: Maine — apprentice: No prior experience; age 16+; Maine calls this a 'Trainee Plumber' license; journeyman: Path A: minimum 2 years / 4,000 hours as a licensed trainee plumber under supervision of a licensed master plumber; Path B: minimum 2,000 hours as a licensed journeyman-in-training under supervision of a licensed master plumber, within 4 years of J-i-T license issuance; master: Path A: minimum 1 year / 2,000 hours as a licensed journeyman plumber; Path B: minimum 4 years / 8,000 hours as a licensed trainee plumber under supervision of a licensed master plumber; New Hampshire — apprentice: Registration required; no prior experience; journeyman: 4-year plumbing apprenticeship (8,000 hours per ServiceTitan — CONFLICTING: 3,000 hours per other source; verify against OPLC rules); must obtain apprenticeship completion certificate + letter from supervising licensed master plumber; master: Must hold journeyman license for at least 6 months (unusually short — most states require 1-4 years); must provide letter from licensed master plumber certifying competence.

Renewal differs: Maine — Period: 2 years (biennial, based on first licensure date) for all license types; CE hours: null; Fee: $200; New Hampshire — Period: 2 years; CE hours: 6; Fee: $180 (journeyman) / $300 (master).

Next Steps

Contact the destination state board to confirm current transfer/reciprocity requirements. Visit Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC) →

Request credential verification from Plumbers' Examining Board (under Office of Professional and Occupational Regulation, Department of Professional & Financial Regulation) — this often takes 4–8 weeks. Visit Maine board →

Gather required documentation (education transcripts, experience logs, exam scores).

Submit your application to Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC).

These steps are general guidance based on common transfer processes. Your state may have a different process. Always follow the instructions provided by your state licensing board.

New Hampshire Licensing Board

Board

Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC)

Website

https://oplc.nh.gov/mechanical-safety-and-licensing-board

Phone

(603) 271-2152

Contact Mechanical Safety and Licensing Board (under New Hampshire Office of Professional Licensure and Certification — OPLC) to confirm current transfer requirements →

Transfer Your Plumber License: Maine → New Hampshire

Reciprocity Available

Requirements Comparison

Key Differences

Next Steps

New Hampshire Licensing Board

Prepare for Your Licensing Exam

Related Pages

Transfer Your Plumber License: Maine → New Hampshire

Reciprocity Available

Requirements Comparison

Key Differences

Next Steps

New Hampshire Licensing Board

Prepare for Your Licensing Exam

Related Pages