US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER b: PERMITSPart 709 — WASTESTREAM AUTHORIZATIONSSubpart E709.50135 Ill. Adm. Code 709.501DurationLast amended: 1986Year: 2026Length: 24 wordsOfficial source Section 709 Section 709.501 Duration A wastestream authorization shall be valid for a period of not less than one nor more than three years.Next35 Ill. Adm. Code 709.510