The Electric Power Research Institute (EPRI) is hosting the 30th meeting of the Continuous Emissions Monitoring User Group in Indianapolis, Indiana. This is a cooperative forum for the electric utility industry to address issues related to continuous emissions monitoring (CEM). The purpose of the meeting is to pool industry experience with CEM devices to share solutions to common operational problems and explore new monitoring technologies. The participants include environmental managers, engineers and technicians from energy supply companies who are responsible for CEM systems.