Unpublished material
After Library and Archives Canada (LAC) has acquired archival records, the records have to be integrated into LAC's collection by archivists. This process can take several weeks, sometimes several months. Until it is completed, the material is not accessible.
Published material
After LAC has acquired books or other types of published material, librarians must catalogue them and create entries for the items in a computerized catalogue. This material is not accessible until the cataloguing work is completed.