Context: Most records at NARA are in the public domain, as works of the federal government are excluded from copyright protection. However, records from other sources may still be protected by copyright or donor agreements. Executive Order 13526 directs originating agencies to declassify documents if possible before shipment to NARA for long-term storage, but NARA also stores some classified documents until they can be declassified. Its Information Security Oversight Office monitors and sets policy for the U.S. government's security classification system.

Question: Most of NARA's holdings are available to sector?
Answer: public domain

Question: Federal government works are excluded from what legal protection?
Answer: copyright

Question: Some records at NARA are legally protected by what?
Answer: copyright

Question: What executive order directs agencies to declassify documents before sending them to NARA?
Answer: Executive Order 13526

Question: What office of NARA oversees the declassification of classified materials?
Answer: Information Security Oversight Office

Question: Most donor records at the ISO office are available to what group?
Answer: Unanswerable

Question: What are donor agreement records excluded from?
Answer: Unanswerable

Question: What does the ISO office direct agencies to do?
Answer: Unanswerable

Question: For how long are documents stored at the ISO office?
Answer: Unanswerable

Question: For how long does the ISO office also store classified documents?
Answer: Unanswerable