New South Wales Consolidated Acts(cf Vic Act s 460)
(1) A notice required under this Act to be given to a member of a co-operative must be in writing.
(2) A notice or other document required under this Act to be given to a member of a co-operative may be given:(a) personally, or(b) by post, or(c) by publishing the notice in a newspaper circulating generally in New South Wales or in the area served by the co-operative, if:(i) the co-operative is a non-trading co-operative, or(ii) the member’s whereabouts are unknown to the co-operative, or(iii) the Registrar permits notice to be given to members of that co-operative in that manner.