There is only the requirement to worm them and get the passport stamped. See my previous post about the vet using the right colour stamp. The timing is, now, that twelve hours must elapse after the worm treatment is administered before your scheduled arrival time in the uk. This is to give the wormer time to work. I think the outside limit is 100 hours before you have to worm again but that is unlikely to affect us as the wording is "scheduled" time of arrival.
Although not, now, a requirement for us to treat for ticks it would be nice if all dogs were treated, if not done already, before they arrive in our shores
It used to be a requirement but the good old lot in Brussels decided that we could suffer from tick borne diseases from Europe when they could so easily be prevented if a treatment was given at the same time as the wormer.
My dog vomited four hours after she was given the wormer (all over the back seat of the truck so be prepared!). I checked with my vet and she advised treating my dog again for her, and our, safety.
There has been some scaremongering that Brexit might change things on the pet passport scheme. It was a British scheme to do away with quarantine, so not sure why that would be. The rumours mention that we might be required to titre test our pets to make sure the vaccine has taken. Titre testing was in the original scheme but dropped by order of the EU so, perhaps, Defra would like it reinstated? This can take a bit of time as the blood test has to be sent to a specialist lab. There was also mention of getting health a certificate just before travel TO Europe. This would not take up so much time. Just a visit to a vet who is authorised by DEFRA to issue them.
I decided to titre test my dog before travelling as both my vet and I thought it a good idea to be sure the vaccine had taken. You only ever have to do it once.
Just check that the vaccine used on your dog has been boosted at the right time. Some require annual boosters. Nobivac is the vaccine of choice in the UK and it only needs boosting every three years.