35 Ill. Adm. Code 219.107
Operation of Afterburners
Section 219
Section 219.107 Operation of
Afterburners
The operation of any natural gas
fired afterburner and capture system used to comply with this Part is not
required during the period of November 1 of any year to April 1 of the
following year provided that the operation of such devices is not required for
purposes of occupational safety or health, or for the control of toxic
substances, odor nuisances, or other regulated pollutants.