The State Permit System
Under 32 M.R.S. §1102-C, except where an exemption applies, a permit must be obtained from the Board before an electrical installation may be performed. The application is submitted by a licensed master or limited electrician (not the homeowner, except under the dwelling exceptions below), with plans or specifications if the Board asks. Three mechanics matter on every job:
- Permit first. The permit is issued before work begins, once the Board finds the described installation compliant and the combined permit-and-inspection fee is paid. All applications are electronic through OPOR's portal.
- Inspection before cover. An inspection is required before electrical wiring is enclosed during construction. The electrician must notify the state inspector — or the municipal inspector where one exists — when the work is ready.
- No permit, no power. A utility must require proof of permit before connecting power to the installation. This is the tripwire that catches unpermitted service work.
Municipal Permits Replace State Permits
Electrical installations "for which a permit and inspection are required by municipal resolution or ordinance under 30-A M.R.S. §4173" are exempt from the state permit. In practice: in Portland, Lewiston, Bangor, Auburn, and other municipalities with their own electrical programs, you pull the local permit and their inspector inspects. In the hundreds of towns without a program — and in the unorganized territories — the state system governs. Your first call is always the local code enforcement office; they'll tell you which lane you're in. Remember that even where the town handles the electrical permit, separate building permits, shoreland zoning, or historic-district review may also apply to the larger project.
What's Exempt from the State Permit
§1102-C exempts, among other things:
- Single-family dwelling work performed by a licensed electrician. Licensed pros don't pull state permits for ordinary single-family jobs (local rules may still apply).
- Owner work on an existing owner-occupied single-family dwelling — new in 2025 PL 2025, c. 88. See below.
- Minor repair work — replacing lamps, fuses, lighting fixtures, switches and sockets, installing and repairing outlets, radio and other low-voltage equipment, and repairing service-entrance equipment.
- Utility work and work on above-ground transmission lines (≥1 kV), by utilities or their contractors.
- In-house industrial work supervised by an employed master electrician or electrical engineer.
- Trade-adjacent work within the scope of oil burner technician, propane/natural gas installer, and plumber licenses (narrowly — e.g., like-for-like water heater and pump reconnections).
The Owner-Occupant Rules
New construction — §1102-D certificate
A person may wire a newly constructed single-family dwelling that they occupy or will occupy as their bona fide personal abode, provided the work conforms to the NEC and they apply for and receive a single-family dwelling certificate before the work, with certification by a state or local inspector. It's a real process, not an honor system.
Existing homes — the 2025 change
PL 2025, c. 88 added a licensing exception 32 M.R.S. §1201-A(13) and a matching permit exemption: a person may make electrical installations in an existing single-family dwelling they own and occupy, as long as the installation conforms to the NEC. This legalized the classic Maine homeowner project — but only in your own home. It does not cover rentals, camps you rent out, in-law apartments, duplexes, or anything you don't personally occupy.
DIY ≠ code-free
Every owner exemption is conditioned on the work conforming to the National Electrical Code. An insurance adjuster or a buyer's inspector will hold owner wiring to the same standard as an electrician's — and non-conforming DIY work is a common reason claims and closings go sideways.