US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER d: UNDERGROUND INJECTION CONTROL AND UNDERGROUND STORAGE TANK PROGRAMSPart 731 — UNDERGROUND STORAGE TANKSSubpart H731.19435 Ill. Adm. Code 731.194Allowable Mechanisms and Combinations (Repealed)Last amended: 1992Year: 2026Length: 9 wordsOfficial source Section 731 Section 731.194 Allowable Mechanisms and Combinations (Repealed)Previous35 Ill. Adm. Code 731.193Next35 Ill. Adm. Code 731.195