Imports and automated edits should only be carried out by those with experience and understanding of the way the OpenStreetMap community creates maps, and only with careful planning and consultation with the local community. See Import/Guidelines and Automated Edits code of conduct for more information. Imports/automated edits which do not follow these guidelines might be reverted!
Importing is the process of uploading external data to OSM.
Bulk imports are occasionally undertaken to supplement data collected by individual volunteers, and the ability to work in an area always has priority. Many free potential datasources have been uploaded into OSM in the past, like AND Data in the Netherlands, TIGER in the United States, Canvec in Canada, and MassGIS in the US state of Massachusetts.
Unlike editing the map or uploading GPX traces, importing combines an existing dataset with the OSM dataset and thus typically includes a complex merging process.