The Department for Environment, Food and Rural Affairs (DEFRA) explains what you have to do to bring your pet dog, cat or ferret into - or back into - the UK through the Pet Travel Scheme (or PETS for short) without putting it into quarantine.

It also explains the requirements for bringing many other types of pet animals into the UK. The DEFRA site also tells you about quarantine in the UK for animals that don't qualify for PETS.