Clubs, Groups, SIGs

N scale clubs/groups and multi-scale clubs with an N scale SIG:

CMNSG - Canberra Monaro N Scale Group
NGSWA - N Gauge Society of Western Australia
NSWNSG - New South Wales N Scale Group 
SANGS - South Australian N Gauge Society
SNSMRC - Sydney N Scale Model Railway Club
SNS-MRC - Southern N Scale Model Railway Club (SA)
VNSC - Victorian N Scale Collective
AMRA* (NSW) - N Scale SIG
AMRA* (WA)   - N Scale SIG 

* Australian Model Railway Association