Maine trade license reciprocity
How Maine licenses each trade and level, who it reciprocates with, and where a Maine license goes.
Electricians
Maine journeyman electrician · “Journeyman Electrician”
Statewide license
Issued by Maine Electricians' Examining Board (Office of Professional and Occupational Regulation)
Maine issues a statewide Journeyman Electrician license through the Electricians' Examining Board within the Office of Professional and Occupational Regulation (OPOR). A new applicant qualifies with 8,000 hours as a licensed apprentice or helper plus a 576-hour course of study (or one of the school and college pathways in 32 M.R.S. §1202-B), completes a 45-hour NEC course, and passes the Prov-administered journeyman exam ($90). The license costs $150 for a two-year term plus a $21 State Bureau of Identification criminal-history report. Maine recognizes out-of-state journeymen two ways: a reciprocity license without examination for states that have a formal agreement with the board (New Hampshire, Vermont, North Dakota, Idaho, Oregon and Wyoming on the licensing page and application form; the board's FAQ now also names Connecticut, Indiana, Massachusetts, Minnesota, New Jersey and Rhode Island), and, since July 2024, licensure by endorsement under board rule Chapter 180 for any other U.S. state whose journeyman requirements are substantially equivalent.
Maine master electrician · “Master Electrician”
Statewide license
Issued by Maine Electricians' Examining Board (Office of Professional and Occupational Regulation)
Maine issues a statewide Master Electrician license through the Electricians' Examining Board within OPOR. A new applicant qualifies with 4,000 hours as a licensed journeyman, 12,000 hours as a licensed helper or apprentice, or 6,000 hours as a journeyman-in-training, plus 576 hours of approved study, completes a 45-hour NEC course, and passes the Prov-administered master exam ($90). The license costs $150 for a two-year term plus a $21 State Bureau of Identification report. Out-of-state masters may be licensed by reciprocity without examination if their state has a formal agreement with the board (New Hampshire and Vermont on the licensing page and application form; the board's FAQ now also names Massachusetts and Rhode Island), or by endorsement under board rule Chapter 180 (effective July 2024) if their state's master requirements are substantially equivalent to Maine's.
HVAC Technicians
Maine journeyman HVAC technician
No individual license at this level
Issued by No HVAC licensing authority (Maine Fuel Board licenses fuel technicians only)
Maine does not issue a journeyman HVAC, air conditioning or refrigeration license, and no Maine city or town was found to do so either; the Office of Professional and Occupational Regulation's list of licensed professions contains no HVAC or mechanical trade. What Maine does license is the fuel side of heating: the Maine Fuel Board issues Journeyman Oil Burner and/or Solid Fuel Technician licenses ($100 plus a $21 background check, exam required, after one year as a licensed apprentice or 160 hours of approved coursework plus six months of apprenticeship) and Propane and Natural Gas Technician licenses ($100 plus $21, board-approved training plus a Fuel Board exam), and anyone who installs or services oil, propane, natural gas or solid-fuel burning equipment must hold one. Ductwork, air conditioning, refrigeration and the mechanical parts of a heat pump need no state license; the electrical connection of a heat pump must be made by a licensed electrician (or, for mini-splits of 36,000 BTU or less in one- and two-family dwellings, by a licensed oil burner technician under a 2013 memorandum of understanding), and the installer needs federal EPA Section 608 refrigerant certification if the system is not factory charged. An out-of-state journeyman HVAC license therefore has nothing to transfer to; the technician may work for any employer without a Maine credential, but must obtain the relevant Fuel Board license before touching a furnace, boiler or gas appliance, and Fuel Board rules give out-of-state applicants no exam waiver, only credit for documented employment as a technician (a statutory endorsement process under 10 M.R.S. s. 8003-H exists but the board has not published a procedure). EPA Section 608 certification is federal and required everywhere for refrigerant handling.
Maine master HVAC technician
No individual license at this level
Issued by No HVAC licensing authority (Maine Fuel Board licenses fuel technicians only)
Maine has no master HVAC, HVAC contractor, mechanical contractor or refrigeration license at the state or municipal level, and no general contractor license, so a business may install and service air conditioning, ductwork, ventilation and refrigeration without any state credential. The highest person-held credential in the heating trades is the Maine Fuel Board's Master Oil Burner and/or Solid Fuel Technician license ($200 plus a $21 background check, exam required, after four years licensed with at least two as a journeyman), which is the license that lets a technician work unsupervised on oil and solid-fuel burning equipment and supervise apprentices; propane and natural gas work needs the separate Propane and Natural Gas Technician license, which has no master tier. Under a 2013 memorandum of understanding between the Fuel Board and the Electricians' Examining Board, master and journeyman oil burner technicians may also wire mini-split heat pumps of 36,000 BTU or less in one- and two-family dwellings and existing multi-family dwellings with electric heat; larger units and other occupancies require a licensed electrician, and refrigerant handling requires federal EPA Section 608 certification. A master HVAC licensee arriving from another state gains nothing from that license in Maine: no Maine agency recognizes it, no reciprocity exists for any Fuel Board license, and the Fuel Board's rules only credit documented out-of-state employment toward the master oil burner qualifications before the applicant sits the Maine exam. A statutory licensure-by-endorsement route (32 M.R.S. s. 18142-A and 10 M.R.S. s. 8003-H) applies to Fuel Board licenses in principle, but the board has not published an endorsement procedure or a list of equivalent states.
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.
Maine master plumber · “Master Plumber”
Statewide license
Maine issues a statewide Master Plumber license through the same Plumbers' Examining Board. By examination the applicant pays the §3501-B fee and shows either one year / 2,000 hours as a journeyman plumber or four years / 8,000 hours as a trainee plumber under a master (or the equivalent), then obtains a passing grade on the board-approved master's examination (32 M.R.S. §3501(2-A)). A Maine master may supervise trainee plumbers; the trainee license itself is issued without examination to a person employed by a licensed master. Out-of-state masters use the same statutory endorsement process as journeymen (32 M.R.S. §3501-C / 10 M.R.S. §8003-H) when the origin master requirements are substantially equivalent; otherwise they sit the Maine master exam with comparable hours credited. The master license costs $200 for a two-year term, plus a $21 criminal background check fee with the first application.
Contractors
Maine residential contractor
No individual license at this level
Maine issues no residential building, home builder, remodeler or home improvement contractor license, and the Attorney General states the position without qualification: "in Maine, general contractors - and trades such as roofing and framing - are not licensed or regulated." What the state does license, through the Office of Professional and Occupational Regulation, is the skilled work inside the house - master, journeyman and apprentice electricians; master, journeyman and trainee plumbers; oil burner and solid fuel technicians and propane and natural gas technicians under the Maine Fuel Board; boiler operators; elevator contractors and mechanics; and manufactured housing dealers, installers and mechanics. A remodeler or homebuilder arriving from another state therefore has no Maine credential to apply for and nothing to transfer, and should instead register the business, ask the local code enforcement officer what permits the job needs, and make sure anyone self-performing electrical, plumbing or fuel work holds the matching Maine trade license. One consumer-protection statute binds every residential contractor even without a license: under the Home Construction Contracts Act, 10 M.R.S. ch. 219-A, any contract to build, remodel or repair a dwelling of three or fewer units for more than $3,000 in materials or labor must be in writing, signed by both parties, and must contain fourteen specified terms, including the statutory warranty, a down payment capped at one third of the contract price, written change orders, a dispute-resolution election and a copy of the Attorney General's consumer protection information on home construction and repair. A violation is prima facie evidence of an Unfair Trade Practices Act violation and carries a civil forfeiture of $100 to $1,000. A narrow license does exist for one selling method: a contractor who solicits or sells home repair services door to door in a municipality where the business has no permanent place of business must first obtain a Door-to-Door Home Repair Seller license from the Office of Professional and Occupational Regulation, which costs $30 a year plus a $21 background check and runs to April 30.
Maine general contractor
No individual license at this level
Maine has no general, commercial, building or unlimited contractor license at any level of government, so there is nothing for an out-of-state general contractor's license to transfer into, no qualifying party to name, no business-and-law examination and no reciprocity list. Maine is also not one of the agencies that accept the NASCLA Accredited Examination for Commercial General Building Contractors, because it holds no contractor examination for that exam to stand in for. The Office of Professional and Occupational Regulation's directory of licensed professions contains no building contractor category at all; the only construction credentials it issues are trade licenses - electricians, plumbers, oil burner and solid fuel technicians, propane and natural gas technicians, boiler operators and inspectors, elevator contractors, elevator and lift mechanics, and manufactured housing dealers, installers and mechanics - alongside the licensed design professions of architect, landscape architect and professional land surveyor. A commercial builder moving to Maine works through the local code enforcement officer and building inspector for permits and inspections, and makes sure the electrical, plumbing, fuel and elevator scope is performed by people holding the matching Maine licenses. Where any part of the job is work on a dwelling of three or fewer units, the written-contract rules of the Home Construction Contracts Act, 10 M.R.S. ch. 219-A, apply to that contract above $3,000 even though the builder is unlicensed; buildings used for commercial or business purposes are outside that chapter.
Home Inspectors
Maine home inspector
No individual license at this level
Maine issues no home inspector license, certificate or registration, so an inspector moving here has no state credential to apply for, no examination to sit and nothing to transfer from another state. The Office of Professional and Occupational Regulation publishes the full directory of the professions Maine does regulate, running from accountants, architects, professional engineers, land surveyors, geologists and soil scientists through electricians, plumbers, oil and solid fuel technicians and propane and natural gas technicians to real estate appraisers, appraisal management companies, the Real Estate Commission, interior designers, door-to-door home repair sellers and transient sellers, and home inspection is nowhere on it; the only listed occupations carrying the word inspector are boiler inspectors, elevator inspectors and mechanics, and tramway inspectors. The state has looked squarely at changing this and declined: after LD 671 of the 129th Legislature became Resolve 2019, chapter 61, the Commissioner of Professional and Financial Regulation delivered a sunrise review on January 10, 2020 which reported that "Maine is one of 16 states that does not regulate home inspectors", that there is no single listing or registry of Maine home inspectors, that the Attorney General's Consumer Protection Division had logged only seven home inspection complaints across 2012 to 2019 and that no Maine court case turned on an inspector's report, and it recommended no licensing program; none has been enacted since, and the only earlier attempt, LD 168 of 1999, also failed. Because Maine holds no home inspector examination, the National Home Inspector Examination has nothing to stand in for here, and any "certified" designation an inspector advertises comes from a private trade association rather than from the state. What binds a Maine home inspector instead is general law: the Maine Unfair Trade Practices Act declares unlawful, at 5 M.R.S. section 207, "unfair methods of competition and unfair or deceptive acts or practices in the conduct of any trade or commerce", and section 213 lets a consumer who bought services primarily for personal, family or household purposes and lost money as a result sue in Superior or District Court for actual damages, restitution and equitable relief after sending a written demand for relief at least 30 days beforehand, while a claim of $6,000 or less can go to small claims court instead. Beyond that it is the written pre-inspection agreement and ordinary contract and negligence law that set the duty owed, because Maine has enacted no statutory standard of care for home inspectors and no statute governing the content or form of an inspection report: the Home Construction Contracts law at 10 M.R.S. chapter 219-A, which requires a written contract above $3,000, is defined as a contract "to build, remodel or repair a residence" and so does not reach an inspection engagement, and the residential property disclosure statute at 33 M.R.S. section 173 puts the pre-sale duty on the seller without requiring an inspection at all. Two boundaries still matter. Radon is not part of an unregulated home inspection in Maine: under the Radon Registration Act a person may not perform, evaluate or advertise to perform or evaluate tests for radon in buildings or on building lots unless registered with the Maine CDC Radiation Control Program, and the exemption for an owner or occupant testing their own building falls away the moment the building is for sale, which is precisely the setting an inspector works in. And the Maine credential whose name sounds closest to this trade is not one: the certified code enforcement officer, municipal building official and third-party inspector under 30-A M.R.S. section 4451 is a public code-enforcement certification held for a municipality to enforce the Maine Uniform Building and Energy Code and the plumbing, wastewater and shoreland rules, not a private practice license, so an inbound inspector should not treat it as Maine's version of a home inspector credential.