All data disseminated by the ADS is available to access openly and free from charge.

Conditions under which data can be reused depends upon the licence attached to a particular data collection by the data depositor. The access licence of a dataset is clearly identified in the left hand menu of each data collection page.

The ADS recommends a Creative Commons CC-BY 4.0 licence to our depositors but some of our collections are made available under other access licences such as the Open Government Licence and other forms of Creative Commons licences.

Prior to the instigation of Creative Commons licensing the ADS had a bespoke Terms of Use and Access to data which many of our older archives are still disseminated under.