This report presents the results of an enhanced baseline assessment prepared as part of the evaluation of the Northwest Energy Efficiency Alliance’s (NEEA’s) Commissioning in Public Buildings Project, which is seeking to transform the market so that commissioning becomes standard practice in the public sector. This enhanced baseline assessment builds upon the public sector results of the October 1998 baseline study by SBW Consulting, Inc., supplementing it with more detailed state and segment-level analysis and with qualitative data collected from other sources and through 33 interviews with project staff, building owner representatives, and commissioning providers. In addition to assessing the structure and status of the market, the enhanced baseline assessment was also designed to analyze barriers that exist to commissioning in the public sector and to evaluate various strategies that might be used to overcome those barriers and attain the goal of market transformation.