Bulk downloads of the Library of Congress *Name* Authority File (NAF) are now available.  The current bulk download is only MADS/RDF.  We'll make a SKOS/RDF download available in the near future.  We are offering two serializations:  n-triples and RDF/XML.

The LC *Subject* Heading (LCSH) file continues to be available for download as SKOS/RDF, but now LCSH is also available in MADS/RDF (in the same serializations).  The MADS/RDF enables the identification of types for subject headings and subheadings.  

They may be downloaded here:

The data dumps are very much a work in progress. Please report problems, issues, and wishes on the ID.LOC.GOV listserv:

Kevin Ford
Digital Project Coordinator
Network Development & MARC Standards Office 
Library of Congress
101 Independence Avenue, SE
Washington, DC 20540-4402

Email: [log in to unmask]
Tel: 202 707 3526