Found it! I believe this is what may be being referred to?
EU welfare in transport regulation
There has been a lot of anxiety and discussion and misinformation with regard to the above.
On 5 January 2007, a Regulation on the protection of animals during transport came into force across the European Union (EU), with some elements coming into force in 2008 & 2009.
These regulations make reference to which animals may not be transported, fitness for travel, rest periods, length of journey (in both hours and distance), containment, training and licensing requirements etc.
The Regulation applies to all those involved with the transport of live vertebrate animals in connection with an economic activity. For example commercial pet breeders, dog racing, those taking part in filming e.g. advertisements which involve financial gain.
The Regulation does NOT apply to the transport of pet animals by their owners to and from events such as shows, (even when they win minor cash prizes).
Hobby breeders are also excluded where their income source does not exceed the expenses of the hobby. The same should apply for example if you use your dogs to pick up at a shoot.
Neither does it apply to the transport of animals to or from veterinary practices; where the animal is an individual animal accompanied by its owner (or other responsible person) and is fit for journey; or where the animal is an individual animal accompanied by its owner (or other responsible person) and is fit for journey; or where animals are pets accompanied by their owner on a private journey.
So you may take your dog to competitions, shoots, shows, the vets and even on holiday provided that any income does not exceed your expenses without worrying about this regulation; of course this does not exempt you from any other animal welfare laws.