US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER a: PERMITS AND GENERAL PROVISIONSPart 204 — PREVENTION OF SIGNIFICANT DETERIORATIONSubpart K204.191035 Ill. Adm. Code 204.1910Transition RequirementsYear: 2026Length: 22 wordsOfficial source Section 204.1910 Transition Requirements The Agency may not issue a PAL that does not comply with this Subpart after September 4, 2020.Previous35 Ill. Adm. Code 204.1900