Library of Congress Subject Headings (e-LCSH)

In October 2005, the U.S. Government Printing Office (GPO) and Library of Congress Cataloging Distribution Service (CDS) investigated options for electronic dissemination of CDS cataloging publications to Federal depository libraries. At the spring 2005 Depository Library Council Meeting in Albuquerque, GPO staff demonstrated the e-LCSH—a PDF version of the Library of Congress Subject Headings, 28th edition. Federal Depository Library Program (FDLP) partners were then invited to review the e-LCSH and provide feedback by answering a brief survey on the value of LCSH in that format.

The survey results were later shared with CDS for the purpose of assessing the viability of this delivery mechanism and for identifying potential product improvements.

Since the completion of the survey, Library of Congress lists new and changed subject headings on a weekly basis.

News & Events

July 30, 2020
The U.S. Government Publishing Office (GPO) will freeze the Federal Depository Library Directory (FDLD) so that no changes can be... Read More ...
July 30, 2020
Every Federal depository library may now order up to seven FDLP face masks for their depository staff. If your library has already... Read More ...
July 29, 2020
The U.S. Government Publishing Office (GPO) welcomes Lake Pleasant Public Library, which is located amongst the Adirondack Mountains, as a new... Read More ...
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Welcome to the FDLP!

national collection

GPO welcomes Lake Pleasant Public Library, which is located amongst the Adirondack Mountains, as a new member of the FDLP. Senator Kirsten Gillibrand (D-NY) designated the library and it is the only depository library in Hamilton County in northern NY.

national collection

At Forsyth County Public Library in Winston-Salem, N.C., the Government documents staff are wearing their FDLP masks as they help the public with their Government information needs.


Library Call to Action

PPC Cataloging Manual

The 4th edition of the NACO Participants’ Manual has just been published by the Program for Cooperative Cataloging, and GPO is mentioned in the first sentence: “The Name Authority Cooperative Project (NACO) was established in 1977 as a result of an agreement between the Library of Congress (LC) and the U.S. Government Printing Office to use and maintain a common authority file…” 

Celebrate Constitution Day!!


Celebrate Constitution Day with us!

FDLD and Salesforce

No changes can be made to the Federal Depository Library Directory (FDLD) from Friday, July 31 - Monday, August 10 to ensure that the correct data is migrated to the new Salesforce platform for askGPO.

For Your Library


Prepare your library for reopening with FDLP face masks and social distancing signage.


Access resources for patrons and administrative information for library staff, as well as infographics and images for your library website.

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