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DOC Staff: Monday to Friday 8:30-5:00
General Public: Our public hours are by appointment only for visitors with a valid research need that requires access to unique items in the Library's print collections. Please call ahead to ensure we have the materials you need and available library staff to escort you from security.
1401 Constitution Ave, NW
Washington, DC 20230
Monday to Friday
8:30am to 5pm
Closed on Federal Holidays
General Public - by appointment only