I don't think it's legally required for vets to check chips whenever new "owners" take them in for a visit. I've been holding out hope for reuniting with my missing cat Salt, but wherever he is, he's happily in someone else's living room. And I doubt the microchip will bring him back anytime soon.

Sadly cat snatching is a real thing that's happened to me possibly twice. The first time was confirmed beyond a doubt; I had to bust out my cat from her back porch at 2am or so when I was roaming the neighborhood looking for him. The only reason I was even in the vicinity was that it was the last spot the GPS tracker reported before he went missing.

"Keep your pets indoors, then!" Yeah, yeah. The risks come with the territory. But my boy Pepper is still with me after a couple years, and I'm hoping a tag with "I have a happy home" followed by my number will keep would-be "do-gooders" away. (A lot of these crazy folks that snatch pets think they're doing the pet a favor by taking them.)

Miss you Salt.

Anyway, the point is, if vets were legally required to actually check the chips when they're brought in for appiontments, they'd quickly notice the discrepancy. They're the only entity in the world in a position to do something about it. But what vet is gonna try to take "your" pet away from you when you take them in just because of mismatched chips? Nobody, because pets are property, and that would be theft according to the law.