Unfortunately, we cannot say for certain what the laws and regulations regarding pet travel within the European Union will be after the 29th March 2019. It is recommended to treat all countries, regardless of their membership to the European Union, as outside of the European Union.
The current requirements for pet travel as outlined by the Government are as follows:
If there’s no deal, pet passports issued in the UK would not be valid for travel to the EU.
Pets that have previously had a blood test and have an up-to-date rabies vaccination do not need to repeat the blood test. Your pet will need a health certificate for each trip to the EU.
You can keep up to date with the government and regulation changes regarding this topic at https://www.gov.uk/guidance/pet-travel-to-europe-after-brexit.