In Ohio, the legal minimum barrel length for a rifle is 16 inches. Any rifle with a barrel length shorter than that would be considered a short-barreled rifle, which is regulated under the National Firearms Act (NFA).
16"
16 inches
Without requiring an NFA Class II permit (for a short barreled rifle), 16 inches. That's federal law, and it does not vary between states.
The minimum legal barrel length for a rifle without requiring it to be tax stamped and registered as a Short Barreled Rifle is 16 inches - that's federal law, and not just Vermont.
As long as you follow all Federal laws, any length you want.
It can be, depending on the action the gun uses. It can also be illegal if you cut the barrel length below the legal limit. In the US, a Title 1 rifle must have a minimum barrel length of 16 inches, and a Title I shotgun must have a minimum barrel length of 18 inches.
Keep the over all leingth of the firearm greater than 26" and you can have whatever barrel leingth you desire.
It depends.. if you have a carbine length barrel and will be using it on a rifle with a carbine length barrel, then yes. If you took it from a rifle with a rifle length barrel, and are putting it on a rifle with a carbine length barrel, then it won't function properly.
16 inches without requiring an NFA permit, the same as it is for the rest of the country.
16 inches before an NFA permit is required, just like the rest of the United States.
16 inches, just like in all the states. Anything shorter requires an NFA permit.