http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Government Publishing Office cataloging guidelines
GPO cataloging guidelines (Archived version)
"The U.S. Government Publishing Office (GPO) Cataloging Guidelines were developed by staff in the Library Services and Content Management (LSCM), Bibliographic Control and Metadata Section with assistance from staff throughout LSCM. These guidelines are intended to provide specific examples and practices that are unique to the cataloging and creation of various types of metadata for U.S. Government information published by all three branches of the Federal Government and in all formats. These guidelines are used by staff at GPO but are also intended for use by staff in Federal depository libraries and library staff in other institutions who handle, process, or use U.S. Government information"--Introduction.
"Please Note: These guidelines are updated frequently. Superseded text is replaced by new text or deleted"--At head of Introduction.
The content is made available by the U.S. Government Publishing Office in accordance with Title 44 of the US Code.
Digital collection: Federal Depository Library Program Web Archive.
United States. Government Publishing Office. Library Technical Services.
Federal Depository Library Program Web Archive