It is now mandatory throughout the United Kingdom for all dog owners to have their dogs microchipped and recorded with a government compliant microchip database such as Chipworks. The law applies to all dogs, even those that were microchipped prior to 2016. All owners are responsible for ensuring their dogs are microchipped and registered correctly, regardless of whether they got the dog before the legislation on microchipping came into effect. If you have had your dog since before the legislation took effect and it is not microchipped you must have that done now and register the details with a compliant database.
Remember, failure to have your dog chipped and keep the registered details up to date and correct could result in a fine under the legislation.
If you are a breeder of dogs in the UK, all your pups must be microchipped and registered on a government compliant database by the time they are eight weeks old and before they go to the new owner.
When a dog is sold or gifted to a new owner or keeper, the details of the new keeper must be added to the database. Likewise if the address or contact details of the registered keeper changes, these changes must be notified to the database to ensure that the stored details are up-to-date.
If you are buying or taking possession of a pup you should not buy or take a dog from a breeder unless it has been microchipped and recorded on a database. The breeder should give you documentation which will allow you to transfer the registered keepership of the pup to you on the database.
The legislation in full can be found by clicking through to the appropriate documents here: