In the fall of 2006, IDEAlliance launched a new proofing systems certification program.  The existing SWOP certification program was, for the most part, based on a human evaluation of visual similarity from proof to press sheet.  But based on the new research, we are, for the first time, able to numerically determine the closeness of a visual match.  The new certification program is being conducted at the Rochester Institute of Technology Printing Applications Laboratory.  Certification under the new program indicates IDEAlliance confirmation that a proofing system has the ability to match the SWOP and/or GRACoL characterization data sets within tight colorimetric tolerances and represent a visual consistency unprecedented in the history of color proofing. The new certification program offers two SWOP options (a #5 groundwood and a #3 publication sheet) along with a GRACoL (#1 coated commercial sheet) option.