US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR STATIONARY SOURCESPart 217 — NITROGEN OXIDES EMISSIONSSubpart I217.24235 Ill. Adm. Code 217.242Exemptions (Repealed)Last amended: 2025Year: 2026Length: 4 wordsOfficial source Section 217.242 Exemptions (Repealed)Previous35 Ill. Adm. Code 217.240Next35 Ill. Adm. Code 217.244