As of Thursday, October 15, 2015, concealed weapon permits are no longer required under the Constitutional/Permitless carry measure in the state of Maine.
If you are legally capable of owning a firearm, then you may now carry your weapon concealed without first obtaining a Concealed Handgun Permit (CHP). The measure known as LD 652, which has now officially become law, was sponsored by Republican Senator Eric Brakey. CHPs may still be purchased and are required for residents of Maine who wish to carry their concealed weapon across state lines.
LD 652 also allows active military service members between 18 and 21 years of age to carry a concealed weapon without a CHP.