4.—(1) If cattle are brought in from another member State, the Channel Islands, the Isle of Man or Northern Ireland, the keeper must, within 15 days of an animal arriving at the holding of destination—
(a)register it with the National Assembly, and
(b)surrender its cattle passport (if any) to the National Assembly.
(2) If cattle are brought in from a place specified in paragraph (1) and the holding of destination is a market or a showground, the provisions of paragraph (1) do not apply until the animal reaches a holding that is not a market or a showground.
(3) The requirement to register does not apply in relation to cattle at a slaughterhouse.