21. The deputy returning officer of the postal polling station places envelope “ENV-1” in the ballot box without opening it after ascertaining that
(1) the elector is entered on the list of electors and the elector’s name appears on the list of the electors registered to vote by mail;
(2) a photocopy of the elector’s identification document is included and the elector’s signature appears on it; and
(3) the elector’s declaration is signed and the signature corresponds to the signature appearing on the photocopy of the identification document.
The deputy returning officer is to cancel envelope “ENV-1” if the photocopy of an identification document is not included, if the elector’s declaration is not signed or if the signature does not correspond to the signature appearing on the identification document.
No envelope may be processed during the advance poll.