US lawIllinoisRegulationsTitle 83 — PUBLIC UTILITIESCHAPTER I: ILLINOIS COMMERCE COMMISSIONSUBCHAPTER f: TELEPHONE UTILITIESPart 725 — STANDARDS OF SERVICE APPLICABLE TO 9-1-1 EMERGENCY SYSTEMSSubpart E725.52583 Ill. Adm. Code 725.525Call Boxes (Repealed)Last amended: 2016Year: 2026Length: 5 wordsOfficial source Section 725.525 Call Boxes (Repealed)Previous83 Ill. Adm. Code 725.520