From AALL’s Washington Blawg:
On Monday, the White House announced the official launch of the XML version of the Federal Register (FR), now available from 2000 to the present through GPO’s Federal Digital System (FDsys), the Federal Register Web site and Data.gov. . .
. . . There are important distinctions between the XML versions available on FDsys and Data.gov. Data.gov is limited to full-year XML downloads, while FDsys offers the ability to quickly and easily download the Federal Register by day, month or year. By providing these options, FDsys may better fit user needs.
In addition, FDsys also provides access to the official, digitally signed PDF version of the Federal Register, in addition to the XML.
For more on this, read Carl Malamud’s interview with Raymond Mosley, Director of the Office of the Federal Register and Michael L. Wash, the Chief Information Officer of the Government Printing Office (O’Reilly Radar, Oct 6, 2009).