US lawIllinoisRegulationsTitle 83 — PUBLIC UTILITIESCHAPTER I: ILLINOIS COMMERCE COMMISSIONSUBCHAPTER f: TELEPHONE UTILITIESPart 711 — COST ALLOCATION FOR LARGE LOCAL EXCHANGE CARRIERSSubpart D711.27583 Ill. Adm. Code 711.275Testing Activity Study (Repealed)Last amended: 2003Year: 2026Length: 8 wordsOfficial source Section 711 Section 711.275 Testing Activity Study (Repealed)Previous83 Ill. Adm. Code 711.270Next83 Ill. Adm. Code 711.280