CAMS L2S and AASA are 12 month license with no driving assessment. they are pretty much for insurance etc.
to get CAMS you need to be a member of a CAMS affiliated car club.
AASA will not get you onto sandown or the island for a track day, CAMS L2S will.
the cams website is not that self intuitive-> http://cams.com.au/Development/Get%20Invol...LicRenewal.ashx