The Distribution Standards Board (DSB) is the self-regulatory arm of the Australian Catalogue Association, and will provide you with a reflective 'No Advertising Material' sticker FREE of charge when you send a stamped, self-addressed envelope to:
(Note: It appears that the DSB changed the address above recently so some of your requests for stickers may not have reached them. We've now amended our site - sorry for any inconvenience!)
According to their website, the DSB maintains a database of addresses containing a No Junk Mail sign.
NoJunk.com.au will have stickers available shortly. Fill in the form below if you would like to know when these are available.