7.—(1) Subject to paragraph (2), the Authority must send a household pack to each household in the address register by post in advance of census day.
(2) The Authority may choose not to send a household pack by post, but instead to prepare for the relevant census co-ordinator to arrange delivery of that pack in accordance with regulation 8.
(3) The Authority may send a reply-paid individual pack to any elector at an address in the address register by post.
(4) In respect of each pack sent in accordance with paragraph (1) or (3), the Authority must ensure that a record is made in the questionnaire tracking system to show that the particular household or reply-paid individual pack has been sent and the address to which it has been sent.