Library of Congress

Cataloging Distribution Service

The Library of Congress > Cataloging Distribution Service
Cataloging Distribution Service

* * * Print publications are no longer available from CDS * * *
Read about free downloads of selected publications.

We publish and distribute many of the Library of Congress cataloging records and cataloging-related tools and resources. Whether you need web-based cataloging tools or cataloging records in various formats, the Cataloging Distribution Service (CDS) provides the most current and authoritative bibliographic resources produced by the Library of Congress.

Classification Web Plus

The only web-based subscription service that features the entire Library of Congress Classification and the complete Library of Congress Subject Headings and Name Headings. Updated daily. Free trial available.

Read more about Classification Web Plus

MARC Distribution Services

The premier source for Library of Congress bibliographic and authority records. Fourteen database services offered in hundreds of languages and distributed via FTP (file transfer protocol).
Read more about MARC Distribution Services

Product Categories

See the range of products CDS packages and distributes as bibliographic databases and web-based subscription services for catalogers.
Read more about our products

CDS Price List

Download the 2023 Web Subscription Services and MARC Distribution Services Price List (PDF, 135KB)

Telephone Number Change

CDS's "toll-free in U.S." telephone number is now 1-855-266-1884.

LATEST NEWS:

Cataloger’s Desktop Subscription

Read more (PDF, 60KB)

Classification Web Plus Training

Training Video (mp4, 9MB)

Read more (PDF, 772KB)

Cataloging Distribution Service Announcement

Read more (PDF, 179KB)

Learn How to Use Tables in Class Web

See presentation now

MDS Technical Notices

Read the latest MARC Distribution Services technical notice.

CDS Customer Satisfaction Survey (CDS Survey).

Please take this brief survey to help us serve you better.