Vermont

Vermont – Ch. 85 Weapons – T.13-4003… A person who carries
   a dangerous or deadly weapon, openly or concealed, with
   the intent or avowed purpose of injuring a fellow man, or
   who carries a dangerous or deadly weapon within any state
   institution… or grounds [thereof]… shall be
   imprisoned… or fined.
– T.13.4004… A person while a member of and in attendance
   upon a school, carries or has in his possession a firearm,
   dirk knife, bowie knife, dagger or other dangerous or
   deadly weapon shall be fined not more than $20; however,
   the board of school directors may authorize the use of
   firearms for instructional purposes…
– T.13.4013. Zip guns; switchblade knives. A person who
   possesses, sells or offers for sale a weapon commonly
   known as a “zip” gun, or a weapon commonly known as a
   switchblade knife, the blade of which is three inches or
   more in length, shall be imprisoned not more than ninety
   days or fined not more than $100.00, or both.