Maine Contractor Licenses: Updated Requirements Guide
Maine regulates key construction trades at the state level through the Department of Professional and Financial Regulation’s Office of Professional and Occupational Regulation (OPOR). Electricians and plumbers are licensed by their respective examining boards under OPOR, and most licensing events—applications, examinations, renewals, and verifications—are handled online. Understanding how OPOR and the trade boards work will help you prepare the right documents, schedule the correct exams, and maintain your license on time.
This guide spotlights several common licenses and authorities to help you get oriented; we update it periodically. You’ll find state-level pathways for electrical and plumbing licenses, step-by-step application guidance, and practical notes on exams with ProV. Where information is not specified in the official sources cited below, the most reliable next step is to contact the relevant Maine board directly through OPOR.
Every candidate should plan ahead for computer-based exams, email-based communications from OPOR and the boards, and biennial license renewals when applicable. Keep your email current in the online portal, retain proof of required work experience and education, and track any continuing education (CE) required by your license class.
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Overview of Maine Contractor Licensing
Maine contractor licensing for electricians and plumbers is administered by OPOR within the Department of Professional and Financial Regulation. The Electricians’ Examining Board regulates electrical licensing statewide and publishes examination, licensing, and renewal information. The Plumbers’ Examining Board provides a similar statewide framework for plumbing classifications, online services, and exams.
Most licensing actions are completed in OPOR’s online portal. Applicants create an account, submit applications for exam or licensure, and receive email notifications once the board reviews the file. After board approval, eligible candidates schedule computer-based exams with ProV at a testing center or via remote proctor in accordance with board instructions.
OPOR also hosts no-cost license verification services and centralizes renewals and contact updates. Because correspondence occurs by email, licensees should maintain current contact information and check spam filters. Electrician licenses renew biennially from the date of first licensure; master-level electricians complete continuing education aligned with the current National Electrical Code (NEC) adopted by the Board.
Browse all Maine contractor license practice tests →
Electrician Licenses in Maine
Maine regulates electrical work with 7 license types. The Electricians’ Examining Board oversees statewide examinations (developed with ProV), licensing pathways, and renewals. Applications, approvals, and routine license services are managed online through OPOR’s portal; official details and updates are posted on the Board’s site.
Master Electrician
Regulatory Authority: Electricians’ Examining Board, Office of Professional and Occupational Regulation, Maine Department of Professional and Financial Regulation — Board website
Eligibility and Experience
Applicants must document either at least 4,000 hours of service as a journeyman electrician or at least 12,000 hours of experience in electrical installations, as approved by the Board. Experience must be supported with appropriate verification meeting Board criteria.
Education
The Master Electrician pathway includes a Board-approved program of study totaling 576 hours in electrical and related courses, plus 126 hours of degree-related coursework. The 576-hour core includes subjects such as:
- Electricity I and II
- Electronics I
- Math I
- Controls I and II
- Motors
- Blueprint Reading/Drafting
- Transformers
- Current National Electrical Code (NEC) course
Degree-related coursework must be from an accredited institution or otherwise approved by the Board.
Examination
Maine contracts with ProV, Inc. to develop its electrician licensing examinations. Candidates submit an examination application to the Electricians’ Examining Board and must receive Board approval before scheduling with ProV. Exams are computer-based and scheduled per ProV’s procedures after Board authorization.
Fees
Initial license fee for Master Electrician: $150. An SBI report fee of $21 applies for initial licensure. Biennial renewal fee for Master Electrician: $150. Late fees: $50 for renewals up to 90 days after expiration; $100 penalty for reinstatement more than 90 days but not more than two years after expiration (in addition to the $150 license fee).
Renewal
Master Electrician licenses renew every two years from the date of first licensure. Continuing education: 15 hours, including a course on the current National Electrical Code adopted by the Board. Late renewal carries the same fee and penalty structure described above.
Contact the Electricians’ Examining Board to confirm application and examination fee amounts and any insurance requirements before applying.
Senior Master Electrician (over 70 years of age)
Regulatory Authority: Electricians’ Examining Board, Office of Professional and Occupational Regulation, Maine Department of Professional and Financial Regulation — Board website
Eligibility and Experience
Experience requirements mirror those of the Master Electrician. The Senior Master designation applies to licensees who are over 70 years of age.
Education
Education requirements align with the Master Electrician pathway, including the 576-hour Board-approved program and 126 hours of degree-related coursework.
Examination
Examination requirements mirror those for Master Electrician. Candidates apply to the Board and, upon approval, schedule the exam with ProV according to Board instructions.
Fees
Initial license fee for Senior Master Electrician: $20. An SBI report fee of $21 applies for initial licensure. Biennial renewal fee: $20. Late and penalty fees are the same as those for Master Electrician.
Renewal
Senior Master Electrician licenses renew every two years. Continuing education: 15 hours including a course on the current NEC adopted by the Board. Late and penalty fees follow the Master Electrician structure.
Contact the Electricians’ Examining Board to confirm application and examination fee amounts and any insurance requirements before applying.
Journeyman Electrician
Regulatory Authority: Electricians’ Examining Board — Board website
Examination
Licensure requires passing the appropriate journeyman examination developed and administered through ProV after receiving Board approval. Candidates apply through OPOR’s online portal and schedule with ProV upon authorization.
Contact the Electricians’ Examining Board to confirm experience prerequisites, education expectations, all fee amounts, insurance requirements, and renewal details before applying.
Limited Electrician
Regulatory Authority: Electricians’ Examining Board — Board website
Examination
Applicants must pass a Limited Electrician examination administered through ProV after Board approval. Scheduling occurs through ProV pursuant to Board authorization received via OPOR.
Contact the Electricians’ Examining Board to confirm classification scope, experience prerequisites, education expectations, fees, insurance requirements, and renewal specifics before applying.
Apprentice Electrician
Regulatory Authority: Electricians’ Examining Board — Board website
Examination
This is a Board-regulated category. Applicants follow Board examination and approval procedures coordinated with ProV. Candidates submit applications through OPOR and proceed based on Board guidance.
Contact the Electricians’ Examining Board to confirm registration procedures, supervision requirements, any education prerequisites, fees, insurance requirements, and renewal terms before applying.
Journeyman-in-Training Electrician
Regulatory Authority: Electricians’ Examining Board — Board website
Examination
This category is administered by the Electricians’ Examining Board; examinations are developed and administered through ProV after Board approval. Candidates follow the Board’s application and authorization process through OPOR.
Contact the Electricians’ Examining Board to confirm eligibility criteria, supervision arrangements, education expectations, applicable fees, insurance requirements, and renewal details before applying.
Helper Electrician
Regulatory Authority: Electricians’ Examining Board — Board website
Examination
The Helper classification is Board-regulated; examination requirements are administered through ProV after Board approval. Applicants apply via OPOR and follow Board guidance for authorization and scheduling.
Contact the Electricians’ Examining Board to confirm allowable work scope, supervision structure, experience or coursework expectations, fees, insurance requirements, and renewal terms before applying.
Plumbing Licenses in Maine
Maine regulates plumbing through the Plumbers’ Examining Board under OPOR. Online services include applying for exams and licenses, renewing, updating contact information, requesting duplicates, and verifying licenses. Examinations are computer-based and administered at ProV testing centers and via remote proctor after Board approval.
Student Trainee Plumber
Regulatory Authority: Plumbers’ Examining Board, Office of Professional and Occupational Regulation — Board website
Eligibility and Experience
Requirements for the Student Trainee classification are set by the Plumbers’ Examining Board and documented in the official application. This pathway is intended for individuals enrolled in plumbing-related education or training programs as defined by Board materials.
Examination
No examination is required for the Student Trainee classification as outlined in the application. Candidates should use OPOR’s online portal for application submission and correspondence.
Contact the Plumbers’ Examining Board to confirm fees, insurance minimums, documentation requirements, and renewal details before applying.
HVAC Licenses in Maine
State-level HVAC/mechanical licensing details are not provided here. HVAC work frequently intersects with electrical and plumbing scopes, and technicians who handle regulated refrigerants must hold appropriate federal EPA Section 608 certification.
How to proceed
For current HVAC/mechanical licensing or registration requirements in Maine, contact OPOR using the resources below. When planning projects that involve multiple trades, ensure the electrical and plumbing components are performed by properly licensed professionals under Maine’s trade boards.
- OPOR portal: https://www.maine.gov/pfr/professionallicensing
- Phone: 207-624-8457
General Contractor Licenses in Maine
Statewide general contractor licensing requirements are not detailed here. Maine’s OPOR portal is the central point for state-administered licenses; verify whether your business model or project scope triggers any state-level trade licensure, registration, or examination. Electrical and plumbing work must comply with the licensing rules of the Electricians’ Examining Board and the Plumbers’ Examining Board.
Next steps
- Confirm whether your scope requires a state-level trade license (e.g., electrical or plumbing).
- Use OPOR’s portal to check available classifications and online services: maine.gov/pfr/professionallicensing
- Coordinate building permits and inspections with the authority having jurisdiction for your project location.
Roofing Licenses in Maine
Roofing-specific licensing is not described here at the state level. If roofing activities intersect with regulated electrical (e.g., photovoltaic systems) or plumbing elements, ensure compliance with the respective state trade boards. Always plan for project-level permitting and inspections through the appropriate authority having jurisdiction.
How to verify requirements
- Check OPOR’s site for any applicable state-administered requirements: maine.gov/pfr/professionallicensing
- If your roofing scope includes electrical components (e.g., solar), follow Electricians’ Examining Board requirements for the electrical portion.
Specialty Trade Licenses in Maine
Specialty trade regulation in Maine is administered through OPOR and specific examining boards where applicable. The electrical and plumbing boards are active examples with defined statewide pathways, examinations with ProV, and online services through OPOR. For any other specialty area, begin with OPOR to determine whether a state board or classification applies to your intended scope of work.
Action items
- Search OPOR’s portal for your specialty to identify any board-managed license pathways.
- If your project crosses into electrical or plumbing, involve Maine-licensed professionals for those parts of the job.
- Plan for local permitting and inspections as required by the jurisdiction where work occurs.
Application Process
OPOR centralizes online applications, approvals, exam scheduling authorization, renewals, contact updates, duplicate license requests, and verifications for participating boards. The Electricians’ and Plumbers’ Examining Boards use this portal to manage applications and communicate status changes. Most notices, approvals, and licenses are delivered electronically to your registered email.
- Access the OPOR online licensing portal to apply for an examination or license for electricians or plumbers: Online Licensing Portal.
- Create or log in to your account, select the appropriate application, and submit required information and fees. Prepare proof of experience and education (where applicable), identification, and any Board-specific documentation.
- The relevant Examining Board reviews your application. If approved for examination, you will receive email instructions to schedule the computer-based test with ProV.
- Schedule and take the examination (when required) at a ProV testing center or via remote proctor, following Board and ProV procedures. Bring acceptable identification and follow all candidate rules supplied by ProV.
- After passing the exam and meeting experience and education requirements, remit the license fee. Licenses and communications are issued electronically via email; verify that your email account can receive messages from OPOR and check junk/spam folders.
- Use online services to renew licenses, update contact information, and verify license status. Keep CE documentation (if applicable) and monitor renewal dates to avoid late or penalty fees.
Timeline: Board approval is required before scheduling an examination. Electrician licenses are issued for two-year terms from the date of first licensure. Exam scheduling occurs after approval, and renewal is biennial for at least master-level electricians.
Reciprocity
Available for Master Electrician: Maine recognizes reciprocity with New Hampshire and Vermont subject to Board approval. Applicants must file a sworn application, hold a qualifying license from a reciprocating state or territory that has a reciprocity agreement with Maine, have passed a written examination in that jurisdiction, and have been actively engaged in electrical work for a minimum of six years.
Reciprocity is administered by the Electricians’ Examining Board. Always review the Board’s current requirements and forms for the most up-to-date process.
Frequently Asked Questions
How long does it take to get a contractor license in Maine?
For trades regulated by OPOR’s boards, you must first be approved by the Board before scheduling the exam with ProV. Electrician licenses are issued for two-year terms from the date of first licensure. The total timeline depends on your application completeness, Board review time, and the next available exam appointment with ProV.
Can I transfer my license from another state to Maine?
For Master Electricians, Maine has reciprocity with New Hampshire and Vermont, subject to specific requirements and Board approval. You must have passed a written exam in the reciprocating state and document at least six years of active electrical work. Other trades and license classes should consult the relevant Maine board for current options.
What happens if I fail the exam?
Retake rules are set by the Board and administered through ProV’s scheduling procedures. Review the Electricians’ or Plumbers’ Examining Board examination pages for current guidance and any applicable waiting periods or rescheduling fees.
Do I need insurance?
Insurance requirements can vary by license type and business structure. Confirm current insurance expectations (if any) with the applicable Maine board before applying or renewing.
How do I renew my license?
OPOR manages renewals through its online portal. Electrician licenses renew every two years from the date of first licensure, and master-level electricians must complete 15 hours of continuing education, including a course on the current NEC adopted by the Board.
What if my city has additional requirements for my project?
Permitting and inspections are typically handled by the local authority having jurisdiction. Coordinate building permits, inspections, and code compliance locally, while following the state-level licensing rules described above for the electrical and plumbing portions of the work.
Where can I find practice tests for Maine exams?
We offer comprehensive PDF study guides for Maine contractor license exams. Materials typically include 1,500–2,500 questions with complete answer keys and reference locators pointing to exact code sections. Study offline at your own pace with no time or use limits. Browse Maine contractor practice tests.
Maine · Practice tests
Maine contractor license practice tests
The Maine practice tests we publish today: comprehensive PDF guides, typically 1,500 to 2,500 questions each, with full answer keys and reference locators to the exact code sections. We add new tests regularly, so if your license isn’t listed here, contact us and we’ll build it.
- Business, Law, and Project Management (NASCLA) Reference Practice Test
- Installing Hardwood Flooring NOFMA - Reference Practice Test
- National Electrical Code (NEC) 2017 Practice Test
Related Official Resources
Official Sources for Further Details:
-
Electricians’ Examining Board – Maine Office of Professional and Occupational Regulation
http://www.maine.gov/pfr/professionallicensing/professions/electricians
Official Board Site | Accessed: 2026-07-21 -
Electricians’ Examining Board – Contact Information
https://www.maine.gov/pfr/professionallicensing/professions/electricians/home/contact
Official Board Site | Accessed: 2026-07-21 -
Electricians’ Examining Board – Master Electrician, Senior Master Electrician
https://www.maine.gov/pfr/professionallicensing/professions/electricians/licensing/master-electrician-senior-master-electrician
Official Board Site | Accessed: 2026-07-21 -
Electricians’ Examining Board – Laws & Rules (MRS Title 32, Chapter 17. ELECTRICIANS)
https://www.maine.gov/pfr/professionallicensing/sites/maine.gov.pfr.professionallicensing/files/inline-files/Board-Laws-01.2020.pdf
State Statute | Accessed: 2026-07-21 -
Electricians’ Examining Board – Examinations
https://www.maine.gov/pfr/professionallicensing/professions/electricians/examinations
Official Board Site/Exam Provider Information | Accessed: 2026-07-21 -
Plumbers’ Examining Board – Maine Office of Professional and Occupational Regulation
http://www.maine.gov/pfr/professionallicensing/professions/plumbers-examining-board
Official Board Site | Accessed: 2026-07-21 -
Plumbers’ Examining Board – Online Services
https://www.maine.gov/pfr/professionallicensing/professions/plumbers-examining-board/online-services
Official Board Site | Accessed: 2026-07-21 -
Plumbers’ Examining Board – Examinations
https://www.maine.gov/pfr/professionallicensing/professions/plumbers-examining-board/examinations
Official Board Site/Exam Provider Information | Accessed: 2026-07-21 -
Student Trainee Plumber Application – Plumbers’ Examining Board
https://www.maine.gov/pfr/professionallicensing/sites/maine.gov.pfr.professionallicensing/files/inline-files/Student%20Trainee%20Plumber%20Application.pdf
Official Board Form | Accessed: 2026-07-21 -
Maine Office of Professional and Occupational Regulation – Professional Licensing
https://www.maine.gov/professionallicensing
Official Department Site | Accessed: 2026-07-21
Important Disclaimer
Information Currency: This guide reflects licensing information as available in 2026. Licensing requirements are subject to change without notice. Always verify current requirements with official sources.
Official Source: For current information, contact Multiple Authorities – See research notes:
- Website: https://www.maine.gov/pfr/professionallicensing
- Phone: 207-624-8457
No Legal Advice: This guide provides general information only. Consult with the licensing board or a qualified professional for guidance specific to your situation.
Permits and Inspections: Coordinate building permits and inspections with the authority having jurisdiction for your project location, in addition to meeting the state-level licensing requirements above.