The National Library of Norway is digitizing its entire collection. The Norwegian Legal Deposit Act requires that all published content, in all media, be deposited with the National Library of Norway. The collection is also being expanded through purchases and gifts. The digital collection contains material dating from the Middle Ages up to the current day.
In parallel with digitizing of analogue material, the National Library of Norway is working to expand the scope of publications covered by legal digital deposit legislation. The Library wishes to receive the digital source of the publication and in this way expand collection’s digital content. The digitizing programme started in 2006. It is estimated that it will take 20–30 years for the entire collection to be digitized.