12.—(1) Every person to whom an Individual Form has been supplied in accordance with regulation 10 shall return the completed form by placing it and sealing it in the individual return envelope provided and giving it to the person to whom the Household Form was delivered in accordance with regulation 8(1)(a).
(2) Where in accordance with paragraphs (1) and (3) of regulation 11, Individual Forms and, as the case may be, individual return envelopes have been issued, the person responsible for issuing those forms and envelopes, or any person who has taken his place, shall collect the completed forms and any envelopes on the day after census day or as soon thereafter as is reasonably practicable.
(3) Every person to whom a Household Form has been delivered in accordance with regulation 8(1)(a) shall return the completed form, together with any completed Individual Forms that have been given to him in terms of paragraph (1) above, by posting it or, as the case may be, them on 30th April 2001 or as soon thereafter as is reasonably practicable in the reply envelope supplied.
(4) Every person to whom a Communal Establishment Form and a reply envelope has been delivered in accordance with regulation 8(1)(b), shall return the completed form, together with any completed Individual Forms including those which have been collected in accordance with paragraph (2) above, by posting it or, as the case may be, them on 30th April 2001 or as soon thereafter as is reasonably practicable in the reply envelope supplied.
(5) The census enumerator shall make arrangements for the collection of the completed Communal Establishment Form delivered in accordance with regulation 8(1)(b) from every person to whom a Communal Establishment Form but no reply envelope has been delivered, together with any completed Individual Forms and, as the case may be, individual return envelopes including those which have been collected in accordance with paragraph (2) above.
(6) The Registrar-General shall make arrangements for the collection of completed forms of return from every person to whom a form of return has been delivered in accordance with regulation 8(3).