Are HomeAgain Microchips ISO Compatible for International Pet Air Travel?

Are HomeAgain Microchips ISO Compatible for International Pet Travel?Are HomeAgain Microchips ISO Compatible? 

Microchips tend to be a confusing part of pet travel, so we like to revisit this issue every once in a while in order to help clarify some of the muddier details.

In particular, after publishing a post about whether AVID microchips are compatible for international pet travel, we've been receiving a lot of questions about HomeAgain microchips and whether or not they're ISO compatible. In short, yes they are, but keep reading to find out more.

Take a look at our previous blog post on this topic for more info on AVID and HomeAgain microchips, and read on to explore some frequently asked questions about microchips and pet relocation.

How big are microchips and what exactly is their purpose?

Microchips are tiny computer chips that have been programmed with identification numbers. They are used to facilitate safe and orderly animal importation into different countries, and they're no bigger than a grain of rice. Microchips are implanted with a hypodermic needle, usually between a pet's shoulder blades, and the process requires no anesthesia or sedation.

How do you know which microchip you need?

Different countries have different requirements when it comes to microchipping, so before a trip it's important to double check the specific rules and regulations of your destination. International travelers will most likely need to secure an ISO (International Organization for Standardization) approved chip.

What do you do if you already have one kind of microchip and find out you need another?

The original chip does not have to be removed. Just make sure your vet letter states that there are two chips so that the official in charge of scanning will know to look for the other chip if the wrong information initially shows up.

Which microchips will allow entry into the EU?

The HomeAgain chip is ISO compatible, as is the AVID Euro chip (which is different from the AVID Standard). Some countries, such as Hong Kong, still require the AVID Standard microchip, so again, double check each nation's requirements before you travel internationally.

Thanks for your questions and keep them coming! Contact us if you'd like some help arranging safe pet shipping, and don't forget to join us on Facebook if you haven't already.


 Editor's Note: This post was originally published in December 2010 and has been updated with new information. 


PetRelocation Team


Air Travel, Ask the Experts, Microchips


Cats, Dogs



Add a Comment

By Cindy on December 3, 2010 at 3:20 pm

And what do you do once you've relocated, where and how do you register your new address to the chip? I mean we've got 3 cats and 1 dog; 1 cat has a Dutch chip registered to a Dutch address and the other animals have Italian chips registered in Italy yet we live in Scotland and are on our way to Namibia!? Is there an international register where you can register your pets' chips??

By on December 6, 2010 at 12:03 pm

@Cindy: Great question. It is important to keep the addresses registered with each individual chip company. There is a centralized database where people can look up chips: Even just making sure that your email address associated with your pet stays up to date is important. Consider setting up an email address that you can permanently own just for this purpose. One time our agents found a cat in Germany that belonged to a military family. None of the details matched up with the owners but we sent an email to the address and they had moved twice since they last updated the chip! Luckily the email address remained the same and we were able to reunite them.

By Heather on February 25, 2011 at 1:34 pm

This is how Delta advertises their pet travel: "Pet Travel from Delta for happy healthy, jet-set pets" BUT this is what happened to me: On 1/22/11 we were having our newest family member, a kitten we named Snickers shipped to us from Utah. We paid for her to be in a climate controlled cargo & even paid an extra $70 for an expedited service called Delta Dash which should have meant she was the first thing off or on the plane. When we got to the airport, we waited, her flight came in at 8:40, they didn't bring her out to us until 9:30. (50 minutes after the plane landed) She was cold, pale, limp & unresponsive & had blood coming from her nose & mouth. My family rushed her to the emergency vet, but on the drive, she passed. The vet pronounced her DOA, she died from extreme hypothermia, she froze to death. Apparently, what we thought was a warm cargo bin, wasn't. When a plane lands, climate control is lost & she didn't stand a chance for 50 minutes in their cargo hold. If for any reason there is a holdup on the tarmac, our animals are trapped, unable to escape the extreme cold or extreme heat in the summer. Our family is devastated & Delta's response has been disgusting. They valued her life at 50 cents per pound if you can even believe that. Life to them is worth no more then 50 cents a pound -- DISTURBING! BUYER BEWARE!

By Jessica on January 15, 2018 at 2:05 pm

WOW! That is so, so, so horrific! So sorry for your loss.This is reiterates why I am flying in to France just to keep my kitties in-cabin with me the entire time. We are moving to the U.K., and they have terrible laws regarding animals flying in-cabin. So, we are flying to France and then hiring a DEFRA-approved driver to take us across the border via Eurotunnel.

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