35 Ill. Adm. Code 251.103
Definitions
Section 251
Section 251.103 Definitions
"Act": the Environmental Protection Act [415 ILCS
5].
"Agency": The Environmental Protection Agency
established by the Act.
"Annual": Of the period of one year commencing on
the original billing date of a particular air pollution site fee.
"Annual Fee": The air pollution site fee
prescribed by Section 9.6 of the Act and collected by the Agency pursuant to
this Part.
"Greenhouse
Gas" or "GHG" means the air pollutant defined in 40 CFR
86.1818-12(a) as the aggregate group of 6 greenhouse gases: carbon dioxide,
nitrous oxide, methane, hydrofluorocarbons, perfluorocarbons, sulfur
hexafluoride.
"Permitted to Emit": The sum of allowable
emissions of regulated pollutants at a site from all emission sources which
have received an operating permit from the Agency's Bureau of Air.
"Regulated Air Pollutant": Any contaminant which
is emitted to the atmosphere and which is regulated under the Act or the
regulations of the Illinois Pollution Control Board and receives an air
pollution operating permit after January 1, 1986.
"Site": Any location, place, tract of land, and
facilities, including but not limited to, buildings and improvements used for
purposes subject to regulation or control by the Environmental Protection Act
or regulations thereunder.