Rabies Titer Test for Pet Travel: What It Is and When You Need One

A rabies titer test (also called a FAVN test or fluorescent antibody virus neutralization test) is a blood test that measures the level of rabies antibodies in your pet’s bloodstream. It proves your pet’s rabies vaccination is actually working, not just that the shot was given.

Several countries require this test before allowing a pet to enter. The test result must show an antibody level of at least 0.5 IU/ml. If the result is below that threshold, your pet will need a rabies booster and a retest.

The rabies titer test is required for pet entry into:

EU countries (UK, Germany, France, etc.) do not require a titer test for pets traveling from the United States, because the US is classified as a listed (low-risk) country for rabies. The document that move runs on is an EU animal health certificate rather than a pet passport, which is covered in our guide to whether your pet needs a pet passport. However, if you are relocating from a country the EU considers high-risk, a titer test would be required.

The titer test itself takes about 2 to 3 weeks for lab results. That part is straightforward. The complication is the waiting period some countries impose after the test.

Japan’s rule is the strictest: the blood sample must be drawn at least 180 days (about 6 months) before your pet arrives in Japan. This means if you are moving to Japan, the titer test is one of the very first things you need to arrange.

Here’s the typical sequence:

For Japan, step 6 means 180 days from blood draw to arrival. If your result is too low and you need a booster and retest, the 180-day clock resets.

Not every lab can run a FAVN test. The sample must be processed at a laboratory approved by the destination country. For most destinations, the two US-based approved labs are:

Your vet draws the blood, separates the serum, and ships it to the lab with the proper paperwork. The lab does not accept samples directly from pet owners.

Both are recognized by USDA for export FAVN testing and both sit on the EU and CDC approved lists, but they are not interchangeable, and the differences decide which one your move needs.

So the faster standard turnaround and the only Japan-approved option are at Kansas State, while the ability to pay for a rush sits at Auburn. Check the destination authority’s own list before choosing, because approval is granted per destination and it changes.

There is a second reason the approved list matters, and it is new. A dog vaccinated outside the United States that has been in a country CDC treats as high risk for dog rabies needs a titer from a CDC-approved laboratory as part of its import file. That route is set out in our guide to the CDC Dog Import Form.

This is the part of the rule that changes what the test is worth, and it is missing from most guides, which describe the titer as something to redo every couple of years.

Both of the authorities that make the test hardest say the same thing. The European Union states that the test does not have to be renewed on an animal which, after a satisfactory result, has been revaccinated against rabies within the period of validity of the primary vaccination and of every subsequent vaccination in the series. Japan puts it even more plainly: if the validity period of the antibody test has expired there is no need to repeat the waiting process, as long as rabies vaccinations have been given continuously within their expiry periods, and it states that continuing to test every two years is not required.

So the correct way to think about a titer is a one-time cost with a condition attached, rather than a recurring one. Pass it once, keep the vaccination series unbroken, and the result carries forward.

The condition is unforgiving, and it is where owners lose years. A booster given even one day after the previous vaccination expired breaks the series. That does not just cost a new vaccination. It ends the validity of the titer, which means a new blood draw at least 30 days later, a new result, and for Japan a fresh 180 day wait from the new sampling date. A lapsed booster is the single most expensive administrative mistake available in pet travel.

The practical instruction is short. Before starting any titer process, check the expiry date on the current rabies certificate, and put the booster in the calendar for well inside it rather than on it.

Both of these are quoted from memory across the industry, and in both cases the legal text pins the deadline to something other than the travel date.

For the European Union, the sample must be collected by an authorized veterinarian at least 30 days after the primary vaccination, or within a current valid vaccination series, and not less than 90 days before the date of issue of the animal health certificate. Not 90 days before the flight. The certificate is issued before departure, sometimes well before, so a plan built backwards from the travel date can miss by the gap between the two. The result must be at least 0.5 IU/ml.

For Japan, the 180 days run from the date of blood sampling to the date of arrival, and the sampling date counts as day zero. The result itself is valid for two years from that sampling date, and the arrival must also fall inside the validity of the rabies vaccination in force. Japan also refuses live virus and RNA rabies vaccines outright, so the product used matters as well as the date.

One more sequencing rule sits underneath both and it is the one that invalidates the most tests. The microchip has to be implanted before the rabies vaccination, and the vaccination has to precede the blood draw by the required interval. Get the order wrong and the vaccination does not count, which means the titer drawn from it does not count either.

Total: roughly $180 to $350. If your pet needs a booster and retest, you pay again.

If the antibody level comes back below 0.5 IU/ml, your pet needs a rabies booster vaccination, then a new blood draw at least 30 days after the booster, and a retest. The waiting period for countries like Japan restarts from the new blood draw date.

This is why starting early matters. A failed first test can add 7 to 8 months to your timeline for Japan, and 2 to 3 months for other destinations.

Hawaii is rabies-free and protects that status strictly. Without a qualifying titer test, your pet faces a 120-day quarantine in Honolulu. With the correct titer test and paperwork, the quarantine drops to 5 days or less (direct airport release is possible).

Hawaii’s requirements: two rabies vaccinations given more than 30 days apart, a titer test drawn after the second vaccination, and the result must be at least 0.5 IU/ml. The blood draw must occur at least 120 days before arrival in Hawaii. See our Hawaii guide for the full process.

When you work with Pet Travel Advisors, we build the titer test into your move timeline from the start. We make sure the microchip, vaccination, blood draw, and lab submission happen in the right order with enough time for the waiting period. If your destination requires a titer test, we flag it at the very first planning call so you are not surprised six months into the process.

Request a quote and we will put together a detailed plan and price for your specific route.

Prefer to talk? Give us a call at 1-877-540-0555.

Checked August 2026.

For most destinations, the titer test result is valid as long as your pet’s rabies vaccination stays current (no lapses). If the vaccination expires and is given again, some countries require a new titer test. Check your destination’s specific rules.

The test must come from a lab approved by the destination country. A result from a non-approved lab will not be accepted, even if the numbers are fine.

Yes, for destinations that require it (Japan, Australia, Singapore, others), cats need the same rabies titer test as dogs.

For Japan, there is no shortcut around the 180-day wait. Some owners send their pet ahead to board in the destination country during the waiting period, or delay travel. For other destinations with shorter waits, contact us and we can look at the specific timeline to see what is possible.

No. The rabies vaccine is the shot that gives your pet immunity. The titer test is a blood test that measures whether the vaccine produced enough antibodies. You need the vaccine first, then the titer test to verify it worked.

Hawaii runs the strictest version of this test of any US destination, and its clock is unusual: the 30 day wait counts from the day the laboratory received the sample, not from the draw date or the result. Our Hawaii pet quarantine guide sets out the full sequence, including why the microchip has to go in before the blood is drawn.