evidence: If you are travelling from a non-EU country or territory, your pet must have an EU animal health certificate issued by an official State vet in the country of departure not more than 10 days before your pet arrives in the EU. The certificate is valid for travel between EU countries for 4 months from this date or until the anti-rabies vaccination expires, whichever lapses first. [...] From 1 January 2021, EU pet passports issued to a pet owner resident in Great Britain are no longer valid for travel with pets from Great Britain to an EU country or Northern Ireland.