23.—(1) Subject to regulation 24, this regulation applies where—
(a)there is a change in the keeper of a vehicle;
(b)the person disposing of the vehicle is the registered keeper;
(c)a vehicle registration document has been issued in respect of the vehicle in Great Britain on or after 24th March 1997; and
(d)the new keeper is a vehicle trader.
(2) The registered keeper shall forthwith notify the Secretary of State, on that part of the registration document which relates to the transfer to a vehicle trader, or otherwise in writing, of the following—
(a)the name and address of the vehicle trader;
(b)the date on which the vehicle was transferred to the vehicle trader;
(c)a declaration signed by the registered keeper that he transferred the vehicle to the vehicle trader on the date specified in accordance with sub-paragraph (b); and
(d)a declaration signed by the vehicle trader that the vehicle was transferred to him on the date specified in accordance with sub-paragraph (b).
(3) If the registration document issued in respect of the vehicle is in his possession, the registered keeper shall deliver to the vehicle trader those parts of it not required to be sent to the Secretary of State under paragraph (2).