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Notice
JUNETEENTH HOLIDAY: On Friday, June 19, 2026, the Jefferson Building Great Hall, The Source, and exhibitions will be open from 10 a.m. - 5 p.m. to guests with timed-entry passes. The Main Reading Room will be open to visitors, but no research or collections services will be available. All other reading rooms, the Madison and Adams Buildings will be closed to the public. Regularly scheduled access resumes on Saturday, June 20.

Research Centers

Register for Interlibrary Loan

Please fill out the form below, and submit. Mandatory fields are indicated with an asterisk (*). Foreign libraries, please read Loans to Libraries Outside the U.S. for more information.

Library Name
Please complete Name
Primary Address
Please complete Primary Address line 1
Please complete Primary Address line 2
Billing Address
Please complete Billing Address line 1
Please complete Billing Address line 2
Primary ILL Contact
Please complete Contact Name
Please complete E-mail address
Please specify a valid email address
Please complete Daytime Phone (xxx-xxx-xxxx or (xxx)xxx-xxxx)
Other


Note: The Library of Congress Legal Notices page explains how email is treated with regard to privacy.

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Location

Library of Congress
Thomas Jefferson Building
10 First Street SE
Washington, DC 20540
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Hours

All research centers are open Monday-Friday, 8:30am-5:00pm. Evening and Saturday hours vary by research center. All research centers are closed on Sundays and Federal Holidays.