
I have always chipped the pups as they leave and recorded the new owners details as i do it. I have asked pet log for clarification on this because the legislation as i read it doesn't make it clear that the pup has to be registered into the breeders name first. If i have missed it please feel free to correct me as Pet log are taking a long time in replying to my request.
Change of keeper
8. (1) From 6 April 2016, where a dog is transferred to a new keeper, the new keeper must, unless the previous keeper has already done so, record their full name, address and contact telephone number (if any) and any change in the dog's name with the database on which the dog's details are recorded pursuant to regulation 3(5)(b).
(2) From 6 April 2016 no keeper may transfer a dog to a new keeper until it has been microchipped unless a certificate issued under regulation 3(2) or 3(3) states that the dog should not be microchipped for reasons of the animal's health.
Obligation to microchip dogs
3. (1) Subject to paragraphs (2) and (4), from 6 April 2016 every keeper of a dog which has not been implanted with a microchip by that date--
(a)which is older than 8 weeks; and
(b)which is not a certified working dog for the purposes of section 6(3) of the Animal Welfare Act 2006(1),
must ensure that it is microchipped.
(2) Paragraph (1) does not apply for as long as a veterinary surgeon certifies, on a form approved by the Secretary of State, that a dog should not be microchipped for reasons of the animal's health.
(3) Subject to paragraph (4), from 6 April 2016 a keeper who imports a dog must ensure that the dog is microchipped in accordance with paragraph (5) within 30 days of importing the dog unless a veterinary surgeon certifies, on a form approved by the Secretary of State, that the dog should not be microchipped for reasons of the animal's health.
(4) A certificate issued under paragraph (2) or (3) must state the period for which the dog will be unfit to be microchipped.
(5) A dog is microchipped where--
(a)a microchip which complies with regulation 4 has been implanted in the dog; and
(b)the details set out in regulation 5 are recorded on a database by a database operator meeting the conditions set out in regulation 6.
(1)2006 c.45.
ref:
http://www.legislation.gov.uk/ukdsi/2014/9780111122501/regulation/8