The PDF version of the Voluntary Reporting of Greenhouse Gases 2004 is available at:
http://www.eia.gov/oiaf/1605/vrrpt/pdf/0608(04).pdf

The Voluntary Reporting of Greenhouse Gases 2003 report has been archived and is available at: http://www.eia.gov/oiaf/1605/1605b_old.html

The HTML version of the Voluntary Reporting of Greenhouse Gases 2004 Report will be available in the near future.