Interlibrary Loan
Welcome to Interlibrary Loan at the Library of Congress! Interlibrary loan (or ILL) is the process by which a library requests material from, or supplies material to, another library. At the Library of Congress, we loan our materials out to other libraries/institutions so you can use our collections when you can't travel to visit us in person.
Any domestic or international academic, public, or special library may borrow from the Library of Congress. Our lending policies are governed by the National Interlibrary Loan Code for the United States (from ALA) (PDF, 363KB) and the International Lending and Document Delivery (from IFLA) .
Please note, all items lent from the Library of Congress collections must be used on the borrowing library's premises.
Contact Information
Access Services
Researcher Engagement and General Collections Division
Library of Congress
Washington, D.C. 20540-4660
Ask a Librarian: Loan, Reserves, and Reader Accounts
Accounts: (202) 707-5441 Email: loancirc@loc.gov
ILL Reference: (202) 707-5444
Email: ill@loc.gov
(Please do not use these contacts to submit ILL requests)
Return books via commercial carrier (FedEx, UPS, etc) or USPS Priority Mail or Priority Mail Express to:
Library of Congress
Collections Management Division 4670
101 Independence Avenue, S.E.
Washington, D.C. 20540-4670