The Pigs (Records, Identification and Movement) (Wales) Order 2004 (As amended)
All pigs under 1 year of age moving direct to slaughter, and all pigs over 1 year of age moving to any destination are to be identified with a slap mark on each shoulder area of the pig or must be identified with an ear tag or tattoo containing the DEFRA herd mark.
The slap mark must be the herd mark allocated by DEFRA. There are no specifications on the size of the slap mark, but it must be legible.
Pigs going to slaughter must have a heat resistant ear tag. It is recommended to apply metal tags, then pigs will not require remarking.
Movements between farms in the case of pigs under 1 year may continue using temporary paint mark that last at least until the pig reaches its destination.
Pigs moving to a market must be permanently identified with an ear tag, slap mark or tattoo.
To ensure trace ability is achieved pigs are required to be correctly identified in accordance with current legislation, all pig movements (but not for walking of pet pigs) should be accompanied with a completed standard movement document (AML2), and the relevant part of it must be sent to the local authority of destination within 3 days, in all cases, by the person taking delivery of the animals.