These tools were designed specifically for Canadian facilities. The spreadsheet is appropriate for developing estimates to satisfy Canadian reporting requirements and contains emission factors, fuel property characteristics, and physical unit conversion factors drawn from the most recent Canadian Standards Association (CSA) GHG Challenge Registry guidance (formerly the Canadian Voluntary Challenge and Registry, or VCR). The Tools consist of a spreadsheet with a user-friendly interface and a Quick Start Guide. This spreadsheet was updated in March 2010 to bring it into compliance with the July 11, 2009, Canada Gazette notice.