(1) Every preliminary referendum roll printed under section 13(3) has the following purposes:
(a) It is, for the purposes of the Electoral Act 1993, the main roll for the district for the year in which it is printed; and
(b) It facilitates the holding of the referendum.
(2) The purpose of every unprinted preliminary referendum roll, the referendum roll, and the supplementary referendum roll is to facilitate the holding of the referendum.