Lost dogs and the license tag

Updated: 2026-10-11

A license tag is a small piece of metal, or a record behind a serial number, that turns a found dog into a phone call. That is the use city pages actually describe. It is not a tracking device. It works when the tag is on the dog, the number is still in the issuer's file, and someone who finds the dog can reach that issuer.

New York City says licenses must be attached to the collar while the dog is in public, and that owners may be fined for violating that requirement. The same page says you can report a found dog that was wearing a license tag through the dog eLocator system, and it points lost-dog reports to Animal Care Centers of New York. The tag is useless in a drawer. Fargo says both the licensing tag and the rabies tag should be worn at all times. Long Beach's code language on its licensing page says a dog over four months in the city must have a collar or harness with the tag fastened to it. Worcester says a license increases the chance of reunion and that licensed dogs must have a valid rabies certificate.

What the office does after a scan or a phone call is local. Seattle says officers make every effort to return licensed animals in the field so the dog avoids a shelter visit, and it says redemption fees will apply. Saint Paul says when a licensed dog is found and the owner is available and has no history of animal-control violations, officers bring the dog home, and it calls that a free ride home. Long Beach also describes a free ride home for a found pet and a longer hold, up to ten days rather than five, before a licensed pet is put up for adoption. Des Moines says animals are held five days without identification and seven days with identification at the shelter it names, and it tells searchers to visit more than once because new strays arrive daily. Dallas's ordinance page says hold times for animals with identification were cut from ten days to five. Use the number from the page that serves the address where the dog was found, not a number from another state.

Microchips come up because tags fall off. Houston says collars and tags help but can be lost, and it requires a registered microchip as part of city registration for dogs and cats four months and older. The microchip is not a substitute for that registration on Houston's page. You still submit the rabies certificate and pay the registration fee. Salt Lake County says every pet in the county can receive a free microchip with proof of a current pet license, during the hours that page lists. A chip helps only if the registry phone number and your phone number are current. Tell the license office and the chip company when you move.

If your dog is missing, call the issuer and the shelter the city names, and bring a photo. San Diego sends people to San Diego Humane Society during the hours on the city page and asks you to bring a picture. Des Moines directs people to the Animal Rescue League shelter at the address and hours on the clerk's page. Do not assume a license means the shelter will call you if the tag was never on the dog. Update a death or a rehoming so a future finder is not sent to an old number. Seattle's portal and Des Moines's clerk both describe how to stop a record that no longer matches the dog.

A license does not replace walking the neighborhood, filing a report, or checking nearby jurisdictions. Providence suggests contacting neighboring animal-control offices when a dog is lost, on its FAQ page. Dogs cross city lines. The tag gets you a record. The search is still yours.