Firearms that are openly displayed can now be carried into facilities that are owned by municipalities.

The Courier-Journal reports that a revision to state law approved last year by legislators is now subject to enforcement. The change specifies that "local governments can't regulate firearms."

That means people can openly carry weapons into facilities owned by municipalities, such as libraries, parks, the zoo and city halls. Cities can ban concealed weapons under another state law.

Guns are banned in some facilities under state law, such as schools, jails and prisons.

Private businesses can still ban firearms.