24.—(1) A UK producer who is a small producer may provide information in response to a request under regulation 23 in the form of an invoice or other existing document.
(2) For the purposes of this regulation, whether a producer is a small producer is to be determined in accordance with Schedule 2.
(3) A producer to whom paragraph 6(1)(a) of Schedule 2 applies must, when responding to the relevant request under regulation 23, provide the Secretary of State with information, in writing, setting out the producer's net NHS sales income for the relevant financial year.
(4) The Secretary of State may, for the purposes of verifying any information provided under paragraph (3), request the producer who provided it to provide that information in audited form.