Is a Montana Resident Permit Valid in Maine?

Why

• Montana is not on Maine's official reciprocity list.
• Maine allows permitless carry for eligible adults 21+, which extends to visitors who may legally possess a handgun.

Maine recognizes a permit 'issued by another state to its resident' only where that state recognizes Maine's resident permit - non-resident permits are not honored. Extra conditions: permit holders from Alaska, Arizona, Iowa, Kansas, Nebraska, North Dakota and Virginia must be 21+ (Virginia holders must also carry government-issued photo ID). In practice most visitors 21+ may simply carry permitless.

Carry rules in Maine

Carry law is state law. From the moment you enter Maine, these rules replace the ones you know from Montana.

• Permit holders have no proactive duty to inform. A person carrying WITHOUT a permit under Maine's permitless-carry law must immediately inform the officer that they are carrying a concealed handgun upon any routine stop, detention or arrest.
• Maine sets no state magazine-capacity limit for handguns.
• Maine allows permitless concealed carry from age 21 for people who may legally possess a handgun, including eligible visitors.
• A person 21+ who may legally possess a firearm may keep a loaded concealed handgun in a vehicle without a permit, but if carrying without a permit must immediately inform law enforcement during any stop.

Off-limits places in Maine

Maine bans carry in 6 kinds of places. The first on the list:

• Courthouses
• Schools and school property

See all 6 places you can't carry in Maine →

Montana vs Maine: what changes at the state line

Crossing from Montana into Maine changes 2 rules: permitless carry (Yes → Yes (21+)); out-of-state permits honored (43 states → 23 states).

Going the other way, a Maine resident permit in Montana: permit not recognized — but permitless carry applies.

Driving on from Maine

How a Montana resident permit fares in the states bordering Maine:

• New Hampshire — Recognized — and permitless carry applies

Check a whole route with the Trip Checker →

Frequently asked questions

Does Maine honor a Montana non-resident permit?

Montana does not issue non-resident carry permits (permit requires at least 6 months' Montana residency, US citizenship or lawful permanent residence, and Montana ID (MCA 45-8-321; MT DOJ). No non-resident permits are issued), so the question does not arise.

Can a Maine resident permit holder carry in Montana?

Permit not recognized — but permitless carry applies. Reciprocity is decided by the destination state, so the answer in this direction depends on Montana's law, not Maine's.

Where does Maine publish its official reciprocity list?

Maine publishes its recognition policy on an official state page, linked in the sources on this page. That page is the authority — check it shortly before travel, because recognition lists change without much notice.