Both dogs and the cat are microchipped. I forget which company (it's one for the dogs and a different one for the cat). Jack and Missy were done by the rescue, I had Sassy done at the vet. All the information is up to date. All three wear collars with tags with my phone number on them at all times. My city does not license pets, so they aren't. I suppose I could license them with St. Paul, but...*shrug*. I don't see the need.