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Library of Congress Classification (LCC)

Code System Library openly published

Outline of the Library of Congress Classification (Cataloging Policy and Support Office)...

Library of Congress, from their own meta description

Other library data models

BIBFRAME Ontology / Vocabulary Dewey Decimal Classification (DDC) Code System GND (Integrated Authority File) Code System MARC 21 Exchange Schema Universal Decimal Classification (UDC) Code System VIAF (Virtual International Authority File) Code System
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Model Details
Steward Library of Congress
Origin United States national body
Layer Code System
Domain Library
Status live
Access Openly published
Go to the steward →
How I know this

Promoted from the public BARTOC registry, then confirmed against the steward's own site.

Confirmed 2026-08-11

Evidence: name evidence 3/4. Found something wrong? Tell me — corrections are cheap and I would rather be right.

Modernity Profile
43.2 Legacy
Access Open
Assessed 81.0% of the rubric

A separate measure from the Kin Score, which rates API providers. This rates how current a standard is in how it is expressed, published and paid for — not how good it is. EDIFACT and X12 score low here and move an enormous share of world trade.

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