US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER II: ENVIRONMENTAL PROTECTION AGENCYPart 254 — ANNUAL EMISSIONS REPORTSubpart A254.11235 Ill. Adm. Code 254.112Typical Ozone Season Day (Repealed)Last amended: 2001Year: 2026Length: 9 wordsOfficial source Section 254 Section 254.112 Typical Ozone Season Day (Repealed)Previous35 Ill. Adm. Code 254.111Next35 Ill. Adm. Code 254.120