This article is from the rec.heraldry FAQ, by Gordon Findlay (firstname.lastname@example.org) and Francois Velde (email@example.com) with numerous contributions by others.
The following are addresses of heraldic associations and authorities.
Only national associations are listed; there are numerous local and
regional societies in many countries and the national societies should be
able to put you in touch with them.
Heraldry Australia Inc
(formerly The Heraldry Society, Australian Branch)
C/- Mr John Billing
697 Gentle Annie Road
RAGLAN, Qld 4697
The Armorial & Heraldry Society of Australasia Inc.
PO Box 352
World Trade Centre
Melbourne, VIC 3005
The Honourable Company of Armigers Inc. (Australian Chapter)
PO Box 11
home page http://expage.com/page/armigers
South Australian Genealogy & Heraldry Society Inc.
GPO Box 592
Adelaide, SA 5001
home page http://saghs.mtx.net/
Heraldry & Genealogical Society of Canberra
GPO Box 585, Canberra, ACT 2601
home page http://www.hagsoc.org.au/
The Heraldry Society of New Zealand,
60 Sayegh St, St Heliers, Auckland.
The Heraldry Society (New Zealand Branch),
PO Box 68-051, Newton, Auckland.