Off the top of my head (Maine):
- The way I read it, the law prohibits any concealed knives, although I don't know what the enforcement standard is. I don't pay much attention to it, myself.
- No automatics.
- Gabe
Title 25: Part 5: Chpt. 252: PERMITS TO CARRY CONCEALED FIREARMS
§2001. Threatening display of or carrying a concealed weapon
No person may display in a threatening manner, or wear under his clothes or conceal about his person, any firearm, slung shot, knuckles, bowie knife, dirk, stiletto or other dangerous or deadly weapons usually employed in the attack on or defense of a person, unless excepted by a provision of law. [1985, c. 478, §2 (new).]
The provisions of this section concerning the carrying of concealed weapons do not apply to: [1985, c. 478, §2 (new).]
1. Permit issued. Firearms carried by any person to whom a valid permit to carry a concealed firearm has been issued as provided in this chapter; [1989, c. 917, §3 (amd).]
2. Disabling chemicals. Disabling chemicals as described in Title 17-A, section 1002; [1985, c. 478, §2 (new).]
3. Hunting knives. Knives used for the purposes of hunting, fishing or trapping as defined in Title 12, section 7001; [1985, c. 478, §2 (new).]
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Chapter. 43 17-A Section 1055. 1. A person is guilty
of trafficking in dangerous knives, if providing he has no
right to do so, he knowingly manufactures or causes to be
manufactured, or knowingly possesses, displays, offers,
sells, lends, gives away or purchases any knife which has
a blade which opens automatically by hand pressure applied
to a button, spring or other device in the handle of the
knife, or any knife having a blade which opens or falls or
is ejected into position by the force of gravity, or by an
outward, downward or centrifugal thrust or movement. 2.
Trafficking in dangerous knives is a Class D crime.