 Queensland has registered plans; New South Wales and Western Australia have deposited plans; while Victoria has certified plans.Land can be identified using the number of this plan of subdivision held with the lands department, rather than with a named unit such as a parish (or both can be used); it is becoming increasingly common to use only the plan number.Within these are individual land parcels such as lots; in total there are estimated to be about 10.2 million of these in Australia.