5. Any haulier collecting milk or milk products on behalf of a purchaser shall keep, and retain for the relevant period, records comprising details of all quantities of milk or milk products so collected, showing—
(a)the time and date of collection from each producer;
(b)the time and date of sampling of the milk or milk products of each producer;
(c)the identity of the producer concerned;
(d)the volume of milk collected (including a copy of the tanker receipt in the cases referred to in paragraphs 2(2)(c) and 3(f));
(e)the identity of the purchaser concerned;
(f)the volume of milk delivered, and the name and address of each reception site;
(g)the sources of all the milk carried on each tanker; and
(h)details of any malfunction in any equipment used by him or her.