US lawIllinoisRegulationsTitle 83 — PUBLIC UTILITIESCHAPTER I: ILLINOIS COMMERCE COMMISSIONSUBCHAPTER f: TELEPHONE UTILITIESPart 711 — COST ALLOCATION FOR LARGE LOCAL EXCHANGE CARRIERSSubpart E711.672783 Ill. Adm. Code 711.6727Account 6727 Research and Development Expense (Repealed)Last amended: 2003Year: 2026Length: 11 wordsOfficial source Section 711 Section 711.6727 Account 6727 Research and Development Expense (Repealed)Previous83 Ill. Adm. Code 711.6726Next83 Ill. Adm. Code 711.6728