Here in the British Isles we’ve got used to free travel, in every form, between all the sovereign states and dependencies that make up our group of islands. Things officially changed though when the Pet’s Passport was bought in but it was basically ignored; heck, we’d always moved animals around so what was different?
The “blind eye” turned by port officials is now officially ended and frankly most of the blame for this can be laid fairly and squarely at the people who bring over van loads of Irish dogs for “rehoming”. Because of them you now cannot transport cats, dogs or ferrets between the two countries without a Pet’s Passport and all the relevant paperwork. So remember this if you are thinking of taking your Glen of Imaal Terrier to visit his ancestral routes!