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Available languages — Tag:odbl=clean
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Public-images-osm logo.svg odbl = clean
Osm element tag.svg
Used to indicate that there is no non-odbl IPR associated with the feature. Only used in situations where doubt may occur.
Used on these elements
may be used on nodesmay be used on waysmay be used on areasmay be used on relations
Status: Discardable

The tag odbl=clean was used to clear features which contain historic contributions from people who have not agreed to the new contributor terms (meaning that the data cannot be kept under the new license, the ODbL, and where those contributions have since been superceded or "washed out" by subsequent changes so that the contributor in question cannot reasonably claim any rights to the current feature.

Tagging in this way was considered preferable to deletion and recreation because it keeps the full contributor history available. This tag was only to be used with care and must not be used to 'make the map go green' without being able to justify your inclusion of the tab in each case.

This tag was respected in the database rebuild. However, deletions will occur in cases where the tag is found to have been misused.

This tag was not for where all contributions relating to a particular user or changeset were in fact clear, where whitelists were preferred.

The tag is of no use in revisions of objects since the licence change and editors now discard it.

Quick history service

If you know of users who allow all their contributions to be relicensed, or if you know of changesets that should be treated as ODbL compatible even when the user has not agreed, then don't tag hundreds of objects with odbl=clean - head over to Quick History Service page and add an override there.

==See also==