Your pet may not enter or re-enter the UK until 6 calendar months have passed from the date that a vet took the blood sample which gave a satisfactory test result. Your pet requires only one blood test and 6 calendar month wait provided all subsequent rabies booster vaccinations are given by the required date.
This wait is necessary because an animal infected with rabies before vaccination would not be protected by the vaccine. Six months is the time needed for most infected animals to display any clinical signs of the disease.

Step 1: The microchip
Your pet must first be fitted with a microchip. Ask the person fitting the microchip to check that its number can be read before and after it has been fitted.
Step 2: The rabies vaccination
Pets being prepared to enter or re-enter the UK must be vaccinated. They must be vaccinated after a microchip has been fitted. Get the vet to read the microchip number before the vaccination.
If your pet was vaccinated before the microchip was fitted, it will have to be vaccinated again. This is to make sure that it is correctly identified when vaccinated
Booster vaccinations
After your pet has been vaccinated and blood tested with a satisfactory result, it will need booster vaccinations. These must be given by the “Valid until” date in section IV of the passport or on the PETS certificate and be recorded on the vaccination record and in section IV of the passport.
If the booster date is missed, your pet will have to be vaccinated and blood tested again. The 6 month rule will apply from the date the new blood sample is taken, provided the result is satisfactory.
Step 3: The blood test
After being vaccinated, your pet must have a blood test to make sure that the vaccine has worked.
Your vet will tell you the best time for the blood test to be done and will take a blood sample to be analysed at an EU-approved laboratory. Take your pet’s vaccination record with you when the blood sample is taken. Ask your vet to read the microchip and to give you a signed record of the date the sample was taken that accurately shows your pet’s microchip number.
Make sure your vet gives you a certified copy of the result, accurately showing the microchip number and the date the sample was taken, and keep it safe.
Your pet requires only one satisfactory blood test and 6 calendar months wait provided the subsequent rabies booster vaccinations are given by the required date.
If your pet fails its blood test it must be blood tested again.
Your vet will advise if it first needs to be re-vaccinated. The 6 month rule will apply.
In Great Britain, the passport is issued by an LVI. If your veterinary practice does not have
a resident LVI, your vet may be able to tell you where the nearest one works.

Using the passport
To enter the UK, the passport must show that your pet has been microchipped, has a current rabies vaccination and has had a satisfactory blood test. It must also show a current treatment for ticks and tapeworms at the time of entry
A passport may not be used enter or re-enter the UK under PETS until
6 calendar months have passed from the date the blood sample that gave a satisfactory test result was taken. You can then continue to use the passport to enter the UK provided your pet is revaccinated by the “Valid until” date in section IV