These Frequently Asked Questions represent more than ninety percent of all preservation questions the Library of Congress receives, a percentage that has remained relatively constant over years. You may notice a significant overlap between the content of the FAQ and that of the Library of Congress Preservation website as a whole; this is because your questions have informed the development of this website.
We have divided the FAQ into the categories below for easier browsing. If you feel your question does not fit into a specific category, please start by browsing the General section.
If your question is not addressed by our FAQ, submit your inquiry using the Preservation Ask a Librarian form. We ask that you please check the FAQ and the navigation links to the left before submitting your question, to see whether the answer is already available.
- Audio-Visual Materials
- Collection Emergencies
- Paper (manuscripts, drawings, newspapers, prints, posters, maps, etc.)
The preservation procedures described here have been used by the Library of Congress in the care of its collections and are considered suitable by the Library as described; however, the Library will not be responsible for damage to your collection should damage result from the use of these procedures.
The Library of Congress does not recommend specific product brands, vendors, or service providers.