35 Ill. Adm. Code 203.2150
Continuous Emissions Monitoring System (CEMS)
Section
203.2150 Continuous Emissions Monitoring System (CEMS)
"Continuous emissions monitoring system" or "CEMS"
means all of the equipment that may be required to meet the data acquisition
and availability requirements of this Subpart, to sample, condition (if
applicable), analyze, and provide a record of emissions on a continuous basis.