6.—(1) The Authority must prepare such regular individual, reply-paid individual, household and communal establishment packs in accordance with this regulation as it considers necessary for the purpose of the census.
(2) The contents of each pack prepared in accordance with this regulation must be contained in a sealed envelope (“delivery envelope”), (“amlen ddosbarthu”) through which any address printed on the questionnaire can be seen.
(3) The delivery envelope for a regular individual pack must contain—
(a)a copy of questionnaire I2;
(b)a copy of questionnaire I2W;
(c)such additional information as the Authority considers may assist with the completion and return of questionnaire I2 and the completion and return of questionnaire I2W; and
(d)an individual return envelope.
(4) The delivery envelope for a reply-paid individual pack must contain—
(a)a copy of questionnaire I2;
(b)a copy of questionnaire I2W;
(c)such additional information as the Authority considers may assist with the completion and return of questionnaire I2 and the completion and return of questionnaire I2W; and
(d)a reply-paid envelope.
(5) The delivery envelope for a household pack must contain—
(a)a copy of questionnaire H2;
(b)a copy of questionnaire H2W;
(c)such additional information as the Authority considers may assist with the completion and return of questionnaire H2 and the completion and return of questionnaire H2W; and
(d)a reply-paid envelope.
(6) The delivery envelope for a communal establishment pack must contain—
(a)a copy of questionnaire CE1;
(b)a copy of questionnaire CE2W; and
(c)such additional information as the Authority considers may assist with the completion and return of questionnaire CE1 and the completion and return of questionnaire CE2W.