The Animals and Animal Products (Import and Export) (Wales) Regulations 2006

4.  The dealer must keep a record for all cattle, pigs, sheep and goats which he or she imports or exports, either on the basis of identification numbers or marks on the animals, and preserve the record for at least three years, of—

(a) the name and address of the seller;

(b) the origin of the animals;

(c) the date of purchase;

(d) the categories, number and identification (or registration number of the holding of origin) of cattle, sheep and goats;

(e) the registration number of the holding of origin or the herd of origin of pigs;

(f) the approval or registration number of the assembly centre through which he or she has acquired sheep or goats (where applicable);

(g) the registration number of the transporter or the licence number of the vehicle delivering and collecting animals;

(h) the name and address of the buyer and the destination of the animals; and

(i) copies of route plans and numbers of health certificates.