Data for download on this site is derived from OpenStreetMap data and Copyright 2015 OpenStreetMap contributors.

As required by this license it is available under the same license as the original OpenStreetMap data, the Open Database License (ODbL).

If you are using the data from this site, I'd be happy if you mention this site or link to it. But you are not required to do so.

For more information about this license as applied to OSM see the OSM site.