Asylum System > Checklist for documents
Residence Permit Including an Expiration Date (Aufenthaltserlaubnis)
The Aufenthaltserlaubnis grants you a residence permit up to 3 years under certain conditions. Since this is the document that legally grants you a temporary residence permit, it is important that you always have it on you.
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http://www.bmi.bund.de/SharedDocs/Glossareintraege/DE/A/aufenthaltserlaubnis.html?view=renderHelp[CatalogHelp]&nn=3314334