Sending a Request via OCLC, Web Client, or ISO ILL
Interlibrary loan requests may be sent electronically through OCLC, any ISO-compliant
OCLC: The symbol for The Library of Congress holdings in
OCLC is DLC, and items can be ordered by entering this symbol five
(5) times in the lender field of the ILL workform for the record in the
OCLC online catalog. If the lender symbol is entered fewer than five times,
the CALM Division will conditionalize the request for reason of "policy." The
requesting library should see the policy message as a lender note, and respond
ILLiad Lending Web Page: The Library of
Congress ILLiad implementation allows libraries to register as ILL borrowers
with LC's ILLiad system. See First Time Registration
for ILL for details. Upon receiving a completed registration form, LC
ILL staff will create an ILLiad user account for your library, and send you
a user ID and password via email, which you may then use to log in directly
ILLiad server as a web client.
NOTE: ILLIAD LENDING WEB PAGES ARE INTENDED FOR U.S. LIBRARIES, ONLY.
Any ISO system (including ILLiad): The Library of Congress
ILLiad installation has not yet encountered an ISO ILL request, although the
capability is there. If you wish to explore ISO ILL borrowing from LC, please contact us.
Mail and Fax: The Library of Congress no longer accepts paper
or fax ILL requests from libraries in the United States. Foreign libraries,
see Loans to Libraries Outside the U. S.
Before sending an interlibrary loan request, please note the following:
- Items represented only by a Cataloging in Publication (CIP) record.
These are identified by looking at two different fields in the cataloging
300 field: no pages or size yet specified (filled in when item
263 field: proposed publication date still listed
(deleted when item is received)
- Books that are in print and procurable through ordinary trade channels
(except for U.S. Government agencies requests)
- Materials classified as genealogy, heraldry, or U.S. local history
unless in microform (CS, CR and F below 1000)
- Bound and unbound periodicals, except for individually cited articles
that can be photocopied
- Rare materials and items published before 1801, excepting those in
- Motion picture films, photographs, and sound recordings
- Commercially available dissertations (except to U.S. government agencies)
In addition, please note:
- The CALM Division does not future date requests for CIP, Not on Shelf,
Lack, and In Process items.
- The CALM Division does not photocopy articles from newspapers in any
- Allow a minimum of two weeks for most monograph and journal article
requests and a month, or more, for newspaper and serial microfilms,
music items, maps, Near Eastern materials, or other requests that must
to custodial divisions.
- LC generally does not collect journals or monographs in clinical medicine,
clinical psychology, nursing, and technical agriculture even though
there may be LCCNs for these items. For materials in these categories,
the National Library of Medicine or the National Agricultural Library.
- Records with the holdings code "rqm" in OCLC are not
necessarily owned by LC. These represent listings from the National
Register of Microform Masters.
- Complimentary photocopies of up to 25 exposures of many non-circulating
items (excluding newspapers) will be provided whenever possible, and
can be transmitted via Ariel if requested.
Requests for more extensive fee-based copying should be sent directly
to the Photoduplication Service, a cost recovery operation separate from
the CALM Division. The address is:
101 Independence Avenue, S.E.
Library of Congress
Washington, DC 20540-5234