Completion of the horse passport by a veterinary surgeon

9.  When the owner of a horse has been issued with a horse passport for that horse he shall ensure that—

(a)any veterinary surgeon who had, to his knowledge, treated or tested the horse before the horse passport was issued, enters in the horse passport all details of any such treatment or test which is described in paragraphs 4 and 5 of Part IIA of the Schedule;

(b)any veterinary surgeon who gives the horse veterinary treatment, or carries out any test on it, which is described in paragraphs 4 and 5 of Part IIA of the Schedule after the horse passport has been issued, completes the relevant part of the horse passport.