West Virginia - JohhnieB has already answered the question, but based on our state alone, as an NRA instructor I advise people to not mention it when pulled over unless asked, or unless one is asked to step from the vehicle. Most of the time it's simply not an issue.

Many times when writing up an accident or a citation I have seen the WV State Police ask the participants to have a seat in the patrol car; I, for one, would certainly not want it to be at that point that the trooper found out I had a concealed weapon, even though legally carried.

Naturally, I also inform students that if they carry into a reciprocating state that recognizes/honors their WV permit, they are subject to the laws, regulations, and practices of the host state.