I don't live in the boonies and shelters/HS still tattoo dogs for id.....actually not many people know about microchips and wouldn't even know to go to a vet and check for one if they found a lost dog.....Pepe's tattoo was done while he was under, they usually do it when they are getting fixed, and some places put a tattoo on the belly to id the dog being spayed....Pepe's tattoo has HSBC (our HS intitals) and his id #. Its on his inner hindleg.