It has been a requirement for some time that horses born since 2009 must be microchipped, but this has now been rolled backwards. ALL HORSES in England MUST be identified with a microchip and a passport. there will be a fixed penalty notice for offenders.
All horses imported into the UK must be microchipped and registered by a UK PIO within 30 days.
Numbers can be checked through the Chip Checker www.equineregister.co.uk and you need to update the Central Equine Database with your horses details.