Z39.50 Cataloging support

Just getting started?

See our Z39.50 Cataloging Getting Started Guide to begin using the service.

Doing more with Z39.50 Cataloging

See Search Tips to find out how to find the items you need more efficiently.

Get the answers you need

Have a question about searching, holdings, or authority work? These topics and others are covered in frequently asked questions.

Frequently used documentation

• Bibliographic Formats and Standards
• Database Update Definitions
• See all Z39.50 Cataloging documentation titles >>

Get assistance for Z39.50 Cataloging

For questions or problems, contact your nearest OCLC office or regional service provider

Stay informed

Stay up on important cataloging information, including new content and other changes to the service. Subscribe to the OCLC-Cat mailing lists.