Taking a pet from the United States to the United Kingdom/Great Britain (England, Scotland, Wales, Channel Islands and Isle of Man)

What this destination requires

Dogs, Cats and Ferrets In the UK, it's against the law to own certain types of dog.

Important information regarding guide and assistance dogs traveling to the UK.

STEP 1: Identification with microchip Dogs, cats, and ferrets must be individually identified by an ISO compliant (11784 and 11785) microchip.

ISO compliant microchips are 15 digits long.

Read the source

This page summarises the USDA APHIS page Pet Travel From the United States to the United Kingdom/Great Britain (England, Scotland, Wales, Channel Islands and Isle of Man). That page is the authority; read it in full before you travel.

Open the APHIS page for the United Kingdom/Great Britain (England, Scotland, Wales, Channel Islands and Isle of Man) →

Note: the stored copy of this APHIS page was capped before its end, so this summary may not cover every requirement. The linked APHIS page is complete.