US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER c: EMISSIONS STANDARDS AND LIMITATIONS FOR STATIONARY SOURCESPart 218 — ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE CHICAGO AREASubpart V218.52135 Ill. Adm. Code 218.521Definitions (Repealed)Last amended: 1993Year: 2026Length: 6 wordsOfficial source Section 218 Section 218.521 Definitions (Repealed)Previous35 Ill. Adm. Code 218.520Next35 Ill. Adm. Code 218.522