As far as I know, there is no penalty for not turning in a revoked CCW card, nor is there much effort put into recovering such a card in the case that the card is revoked.

Unless you call the issuing county's Sheriff's Department and validate the permit at the point of sale, it is essentially just another piece of plastic in a wallet.

For me, seeing a CCW permit is enough. It certainly isn't a guarantee that the person holding it isn't a scumbag, but in my experience, people willing to put money, time, and effort into anything generally aren't the sort of people I worry about.

I'd like to see an LEO weigh in on this.