US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER d: UNDERGROUND INJECTION CONTROL AND UNDERGROUND STORAGE TANK PROGRAMSPart 731 — UNDERGROUND STORAGE TANKSSubpart A731.11135 Ill. Adm. Code 731.111Interim Prohibition for Deferred Systems (Repealed)Last amended: 1992Year: 2026Length: 10 wordsOfficial source Section 731 Section 731.111 Interim Prohibition for Deferred Systems (Repealed)Previous35 Ill. Adm. Code 731.110Next35 Ill. Adm. Code 731.112