US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 604 — DESIGN, OPERATION, AND MAINTENANCE CRITERIASubpart O604.152035 Ill. Adm. Code 604.1520COVID-19 Emergency Provisions (Repealed)Last amended: 2023Year: 2026Length: 6 wordsOfficial source Section 604.1520 COVID-19 Emergency Provisions (Repealed)