If you are considering pet relocation into Portugal, the same EU rules apply. This requires vaccination against rabies to be documented in the pet passport or the animal health certificate. This is the sole requirement for dogs and cats. You can find more information on the official European Commission website for Movement of Pets.
The EU rules also include ferrets. However, Portugal has banned the importation of domestic ferrets in order to avoid cross-breeding with indigenous wild ferrets.
Whilst this contradicts the EU rules, it is recommended that you check the latest information with the Portuguese authorities or the DVAG website.
All pets in Portugal must be registered with the local council and it is mandatory to follow the vaccination program. To register you will need:
The registration licence must be renewed annually at an approximate cost of €20.
Animals in all common or public places must be on a lead and wear an identification collar to include the owner’s telephone number or address.
For breeds considered dangerous, the animal must wear a muzzle. Source: expatsportugal.com