Data sources and attribution

Address data: the Geocoded National Address File

Australia has one official list of addresses. It is called the Geocoded National Address File, or G-NAF, and it is maintained by Geoscape Australia from data supplied by every state and territory. Byrz checks the addresses it receives against that register. When the register confirms an address, Byrz can show it in full. When it cannot, Byrz deliberately shows less: a street without a number, or a suburb without a street. Saying less is how Byrz avoids publishing an address that may not be real.

Required attribution

Incorporates or developed using G-NAF © Geoscape Australia licensed by the Commonwealth of Australia under the Open Geo-coded National Address File (G-NAF) End User Licence Agreement

Disclaimer

Geoscape Australia endeavours to ensure that its products and services are accurate and complete by using source data primarily from Australia’s federal, state and territory governments and other reputable sources. However, Geoscape products and services are provided ‘as is’, and to the extent permitted by law neither Geoscape Australia, nor its distributors, nor Australia’s federal, state and territory governments, nor any other providers of source data make any representations or provide any warranties (express or implied) about the accuracy or completeness of Geoscape products or services, their fitness for any particular purpose or that they are without errors or faults.

To the extent permitted by law, Geoscape Australia, its distributors, Australia’s federal, state and territory governments and any other providers of source data have no liability (including liability in negligence) for any losses suffered (including any indirect losses, loss of profits or data and any other consequential loss) or expenses incurred arising from use of Geoscape products and services for any particular purpose, Geoscape products and services being inaccurate or incomplete in any way for any reason or any errors or faults in Geoscape products and services, even if Geoscape Australia, its distributors, Australia’s federal, state and territory governments or any other providers of source data have been advised of the possibility of such losses or expenses.

The licence itself adds, at section 5(a): Unless otherwise separately undertaken by the Licensor, to the extent possible, the Licensor offers the Licenced Material as-is and as-available, and makes no representations or warranties of any kind concerning the Licenced Material, whether express, implied, statutory, or other. This includes, without limitation, warranties of title, merchantability, fitness for a particular purpose, non-infringement, absence of latent or other defects, accuracy, or the presence or absence of errors, whether or not known or discoverable. Where disclaimers of warranties are not allowed in full or in part, this disclaimer may not apply to You.

Modifications

Byrz does not republish G-NAF. It uses the register to check and, where needed, to correct or shorten the addresses it receives from other sources, then publishes the result. Under the licence that makes what you see on a Byrz page adapted material rather than the dataset.

Use restriction

The open G-NAF licence carries one restriction beyond a standard Creative Commons Attribution licence, at section 2(a)(2): You must not use the Licensed Material for the generation of an address or a compilation of addresses for the sending of mail unless You have verified that each address to be used for the sending of mail is capable of receiving mail by reference to a secondary source of information other than the Licensed Material.

• G-NAF on data.gov.au
• Open G-NAF End User Licence Agreement
• Geoscape copyright and disclaimer notice