MARC Formats
Bibliographic
Authority
Holdings
Classification
Community
Translations

MARC LITE
Bibliographic

MARC Code Lists
Countries
GACs
Languages
Organizations
Relators
Other Value Lists
Sources

MARC Specs.
Record Structure
Character Sets
Exchange Media

More Documentation...

The MARC formats are standards for the representation and communication of bibliographic
and related information in machine-readable form. They are community-driven with the Library of Congress as coordinator.

Next MARC Advisory Committee Meeting: July 22-23, 2026
BIBFRAME (Bibliographic Framework Initiative)
MARC Code Lists as Linked Data
Modern MARC
[MARC en ESPAÑOL]

Understanding MARC Bibliographic -- a brief description and tutorial
Understanding MARC Authority -- a brief description and tutorial
Understanding MARC Holdings Records -- a brief description and tutorial

General Information Introductory MARC Information News & Announcements MARC FAQ MARC Forum (listserv) Unicode-MARC Forum Recommended Reading

MARC Formats Formats and Code Lists Format Overview Ordering Information National Level Requirements MARC Mappings MARC User Notes

MARC in XML MARCXML MODS MADS MARC and FRBR FRBR Display Tool

MARC Development MARC Advisory Committee MARC Proposals MARC Discussion Papers MARC Change Form

MARC Records, Systems and Tools MARC Record Services MARC Systems MARC Specialized Tools