Quarantine regulations operate in the United Kingdom and disobeying them is strictly illegal.
You can obtain more information about animal quarantine regulations from the Defra (Department for Environment, Food and Rural Affairs) website.
Information on the revised regulations for the importation of animals from Europe is also available on these pages.
The enforcement of the regulations covering animals imported into or exported out of the country via anywhere in London is carried out by the Corporation of London as the port health authority.
This also includes imports and exports at Heathrow airport. The unit covering this area of work is based at the Heathrow Animal Reception Centre and may be contacted by following the link on this page.
Pet Travel/Passports
Please follow the link on this page for up to date information from DEFRA.