14. Producers who are distributors must also, for each large producer subject to obligations under regulation 1515(4)(b) or (3)(b) to whom the producer has supplied unfilled household packaging and other unfilled packaging during the relevant period, keep records of—
(a)the identity of the producer,
(b)the number of units of such packaging supplied, and
(c)the weight of unfilled packaging and of unfilled household packaging supplied to that producer.