|The data source of the information used to tag and/or place this element (often considered deprecated)|
|Used on these elements|
that this comes from some other kind of data source
|Tools for this tag|
This key page is a stub. You can help OpenStreetMap by expanding it.|
Similar pages for structural reference: Key:religion, Key:waterway.
This key is mostly used for bulk imports, but also when you base your edits on a data set.
Source information on object level is often considered deprecated. Please consider attributing and naming the source meta information on the changeset instead.
Note that any user of OSM data may filter OSM data in any way imaginable, including in a way that (intentionally or unintentionally) removes attribution tags. The only legally required publicly visible attribution is . Therefore, no tag is an acceptable place for legally required attribution!