35 Ill. Adm. Code 217.224

Emissions Limitations

Last amended: 2025Year: 2026Length: 221 wordsOfficial source
Section 217.224  Emissions Limitations a)         On and after January 1, 2015, no person shall cause or allow emissions of NO x into the atmosphere from any cement kiln to exceed the following limitations.  Until July 1, 2025, compliance must be demonstrated with the applicable emissions limitation on an ozone season and annual basis.  On and after July 1, 2025, compliance must be demonstrated with the applicable emissions limitation on a 30-day rolling average basis. Emission Unit Type NO x Emissions Limitation (lb/ton clinker produced) Before July 1, 2025 Long dry kiln 5.1 Short dry kiln 5.1 Preheater kiln 3.8 Preheater/precalciner kiln 2.8 Emission Unit Type NO x Emissions Limitation (lb/ton clinker produced) On and after July 1, 2025 Long dry kiln 3.0 Short dry kiln 2.3 Preheater kiln 3.8 Preheater/precalciner kiln 2.8 b)         On and after January 1, 2015, no person shall cause or allow emissions of NO x into the atmosphere from any lime kiln to exceed the following limitations.  Until July 1, 2025, compliance must be demonstrated with the applicable emissions limitation on an ozone season and annual basis.  On and after July 1, 2025, compliance must be demonstrated with the applicable emissions limitation on a 30-day rolling average basis. Fuel Emission Unit Type NO x Emissions Limitation (lb/ton lime produced) Gas Rotary kiln 2.2 Coal Rotary kiln 2.5
35 Ill. Adm. Code 217.224: Emissions Limitations | Justis AI