Trade business resources for Maine.

In Maine, trade contractor licensing is administered at the state level through the Office of Professional and Occupational Regulation (OPOR) under the Department of Professional and Financial Regulation. Electricians and plumbers are individually licensed by the state, while general contractors and most specialty trades like roofing and HVAC do not require a state-level contractor license, though local municipalities may impose their own registration or permit requirements.

State licensing board

Maine requires individual journeyman and master licenses for electricians (overseen by the Electricians' Examining Board) and plumbers (overseen by the Plumbers' Examining Board), with masters needing to pass an exam and demonstrate experience. HVAC/refrigeration mechanics are licensed through the Heating, Ventilation, Air Conditioning, and Refrigeration (HVACR) Licensure program under OPOR, with technician and master-level tiers. There is no statewide general contractor license or roofing contractor license required in Maine; however, contractors who employ workers must register with the Maine Workers' Compensation Board and comply with applicable permit and building code requirements enforced at the local level. Any contractor performing work valued above $3,000 in a calendar year may also need to register as a Home Construction Contractor with OPOR under the Contractors' Registration program, which is primarily a consumer-protection registration rather than a competency license.

Business registration