US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 901 — SOUND EMISSION STANDARDS AND LIMITATIONS FOR PROPERTY-LINE-NOISE-SOURCES901.11235 Ill. Adm. Code 901.112Wyman-Gordon Operational Level (Repealed)Last amended: 2018Year: 2026Length: 8 wordsOfficial source Section 901 Section 901.112 Wyman-Gordon Operational Level (Repealed)Previous35 Ill. Adm. Code 901.111Next35 Ill. Adm. Code 901.113