Taking a Dog to Argentina by Car: CVI, Documents, Border

Bringing the dog along is the plan for a good share of people who travel South America by car. The border with Argentina is the first one most people cross, and it is where the trip stalls when the paperwork is not right.

The good news is that this process got much simpler in 2026. The bad news is that it has strict deadlines, and none of them can be sorted out the day before.

In short: the document is the CVI, the International Veterinary Certificate, issued by Brazil's Ministry of Agriculture. Since June 2026 Argentina accepts the electronic version at all borders and airports, so you no longer need to stop at Vigiagro to get it stamped. The request can only be made with departure between 3 and 9 days ahead, and the certificate is valid for 60 days for entry. Argentina does not require a microchip, but Uruguay does.

What changed in 2026: the CVI went electronic

Until recently, the routine included an in-person stop at a Vigiagro office to validate the certificate. It was one more step, with set hours and a set location, on a trip that already has plenty of red tape.

Since June 16, 2026, Argentina has accepted the CVI with the Ministry of Agriculture's electronic signature at all border posts and airports. In practice, the document comes out digitally signed, with a QR verification code, and needs no physical stamp or handwritten signature.

One thing has not changed: the printed CVI is mandatory. Being electronic does not mean you can show it on your phone screen. Print it and keep it in the glove box, together with the rest of the paperwork.

The window that catches everyone: 3 to 9 days

This is the detail that ruins the most trips, because it is counterintuitive.

The CVI request cannot be made too far in advance. The departure date you enter must be between 3 and 9 days from the day of the request. Applying a month ahead is not being careful, it is a rejected request.

On the other side, you also cannot leave it for the day before: the review can take up to 72 hours when the documentation is complete and correct. If anything is missing, the request goes back for correction and the clock starts over.

The steps that come before have their own deadlines, counted backward from the date the certificate is issued:

• Health certificate, issued by a veterinarian, within the 10 days before the CVI is issued.
• Parasite treatment, internal and external, given within the 15 days before issuance.

Putting it all together, the real window for getting organized is roughly two weeks before you hit the road. It is not much, but it is rigid.

The rabies vaccine and the 21-day wait

The rabies vaccine is required from 90 days of age and must be up to date. The Brazilian standard is a yearly booster, and 2 or 3 year intervals are accepted when the manufacturer's protocol allows it and the vaccination card records it.

Two details that catch the unprepared:

• First dose ever: a puppy vaccinated for the first time must wait 21 days after the shot before the CVI can be issued.
• Expired vaccine: if the expiration date has passed, it means a new dose plus the same 21-day wait.

So if your dog's card is expired and the trip is a week away, the math does not work. Before booking anything, look at the card and confirm the vaccine is still valid and that the details of the product given are recorded legibly. It is the cheapest check of the entire trip.

Microchip: Argentina does not ask for it, Uruguay does

Here is the catch that most affects people traveling by car, because the route usually goes through more than one country.

For Argentina and Paraguay, a microchip is not required.

For Uruguay, it is. A dog headed to Uruguay must be identified with a microchip to the ISO 11784 standard, in HDX or FDX-B technology. And there is more: a dog in transit through Uruguay also needs a negative leishmaniasis serology test, done within the 60 days before the trip.

Notice what this means in practice. If your route is only Brazil and Argentina, you are free of the microchip. If at some point you are thinking of heading down through Uruguay by car, even just passing through, you need to sort out the microchip and the test well in advance. A serology test does not come back in three days.

Long trips: the 60-day validity

The CVI is valid for 60 days for entry, counted from the date of issue. For a puppy under 90 days old, it is valid only until the animal turns 90 days.

For a short trip, this is not a problem. For an overland trip, it raises a question worth settling before you leave.

Here is the honest caveat: we did not find, in the official documentation we checked, the exact return procedure for someone who goes past that deadline with the animal outside Brazil. If your trip is longer than 60 days, treat this as something to settle before you hit the road, asking the Ministry of Agriculture directly, and not as a problem to discover on the way back, in the customs line.

On border day

Bring the printed CVI, the vaccination card and the health certificate together, in the same folder as the rest of the car documents. The checklist of documents for crossing a border by car covers what goes along with them.

And remember that the paperwork solves the border, not the trip. The road routine with a dog, stops, heat inside the car and where to sleep with him, is another subject, and it is in the article about traveling overland with a dog.

If your plan is not to take your own car but to fly and rent, check the rental company's pet policy first, because it varies a lot from company to company. It is worth checking this when you compare rental options, before booking, and not at the counter with the dog beside you.

DiscoverCars is a GT Overlander partner and brings together the best rental company options and prices.

To size up the route with the right stops, GT Overlander builds the route from your description in natural language, with context for each stretch, which helps you plan the breaks that a trip with an animal requires.

Frequently asked questions

Can you take a dog to Argentina by car?

Yes, with the CVI issued by the Ministry of Agriculture, an up-to-date rabies vaccine and a health certificate. Since June 2026 Argentina accepts the electronic certificate at all borders, with no need for a Vigiagro stamp.

What documents do you need to take a dog to Argentina?

A printed CVI, a vaccination card with a valid rabies vaccine and a health certificate issued within the 10 days before the certificate is issued. The parasite treatment must have been done within the previous 15 days.

How far in advance should you request the CVI?

The departure date entered must be between 3 and 9 days from the request, and the review can take up to 72 hours. The earlier steps, the health certificate and the parasite treatment, push your planning to about two weeks before the trip.

Do you need a microchip to take a dog to Argentina?

For Argentina and Paraguay, no. For Uruguay, yes, to the ISO 11784 standard, plus a negative leishmaniasis serology test for a dog in transit through the country.

Taking the dog is not complicated, it is just inflexible. Everything the process requires is simple to get, but each step has a deadline that does not bend, and they fit together in an order. Whoever starts two weeks ahead crosses without a scare. Whoever remembers the day before travels without the dog.

The rules and deadlines above apply as of the publication date of this text. Document requirements for animals change without notice, so check the Ministry of Agriculture website before you leave.