The pet travel scheme (pets) allows dogs, cats and ferrets to travel through the eu and certain other countries based on a:
A minimum of 12 weeks of age is required before rabies vaccine can be given.
Planning Pet Travel Post Brexit
Currently from rabies vaccination to travel is a 21 day wait with no post vaccination blood testing required.
With the uncertainty over brexit plans an answer can’t currently be given to what happens next. Anyone wishing to travel with their pet in the next few months, are advised to plan ahead.
Prior to travel:
There is more information here on the government website