In this article we will be seeing how to apply the retention policy for the document library in SharePoint 2010.In SharePoint 2010 we can apply the retention policy to a content type, to a list or document library or to a folder. Here we will be applying the retention policy to a document library or folders.In SharePoint 2010 we can apply expiration policy in multiple stages, where each stage can perform some specific actions.The following OOTB actions are available in SharePoint 2010: