When applying for a ccw, it tells you these things. For instance, you cannot carry in a federal building, police station, post office, bank etc. those are federaly mandated. If a store owner has a sign posted you may not carry a concealed weapon into their store that is backed by the law. A store owner has to apply for that "sticker". They can't just put it up like a home owner posting a sign in front of their house, on the street "no parking''. That is agaist the law as well. All of this is in the application for the CCW. You really have to read things befor eyou sign on the dotted line, not sign and read later.