There is a new version of the Catalog of U.S. Government Publications (CGP). This version of the CGP is the online public access catalog (OPAC) module of the Government Printing Office's (GPO) new integrated library system. With the availability of the new CGP Phase 1 of a larger modernization plan to replace older legacy systems is complete.
The new and improved CGP currently offers more than 500,000 records to both historical and current Government publications. These records have been created or updated since July 1976. Plans are underway to include records for publications dating back to the late 1800s.