The Catalog of United States Government Publications indexes print and electronic Government information products created by Federal agencies. Many of these products were distributed through the Federal Depository Library Program. The Catalog data set contains authoritative bibliographic records generated since January 1994 and is updated daily. For earlier indexing, consult the print counterpart of this index, Monthly Catalog of United States Government Publications, which dates from the passage of the Printing Act of 1895 and is available in most depository libraries. Since 1994 GPO has produced a CD-ROM version as well.