Is a Maine Resident Permit Valid in Montana?

Why

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

MCA 45-8-329 recognizes another state's permit if that state requires a criminal-records background check before issuance and the holder carries the permit plus photo ID; it imposes no issuing-state residency condition. The AG list (last updated Oct 2024) excludes Delaware, District of Columbia, Hawaii, Maine, New Hampshire and Rhode Island because their laws do not expressly require background checks; Vermont issues no permits. Recognition is largely moot for eligible adults because carry is permitless.

Carry rules in Montana

Whatever your permit status, Montana law governs how you carry inside the state. The rules below matter most on a short trip.

• No statutory duty to proactively inform an officer. A traveler carrying under reciprocity must have the permit in immediate possession plus photo ID (MCA 45-8-329).
• Montana sets no state magazine-capacity limit for handguns.
• Montana allows permitless concealed carry for people who may legally possess a handgun, including eligible visitors.
• Montana has no prohibitions on carrying a loaded weapon in a motor vehicle (MT DOJ).

Off-limits places in Montana

• Restricted portions of state or local government office buildings (unless holding a Montana or recognized permit, MCA 45-8-328)
• Courtrooms and spaces controlled by a Montana court (unless authorized by the judge)
• Montana public schools (unless authorized by the school board)
• Federal offices and buildings (federal law)

Frequently asked questions

Is a Maine resident permit valid in Montana?

Technically no reciprocity — practically, you can probably carry. Maine resident permits aren't on Montana's honored list, but Montana allows permitless carry for eligible carriers, residents and visitors alike.

Do I have to tell police in Montana that I am carrying?

No statutory duty to proactively inform an officer. A traveler carrying under reciprocity must have the permit in immediate possession plus photo ID (MCA 45-8-329).

Does Montana limit magazine capacity?

Montana sets no state magazine-capacity limit for handguns.

Can I carry in Montana without any permit?

Montana allows permitless concealed carry for people who may legally possess a handgun, including eligible visitors.

Where does Montana publish its official reciprocity list?

Montana 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.