All carriers offering exchange and exchange access telecommunications services in Illinois are required to have on file at the carrier's headquarters and available to Commission Staff upon request a description of the carrier's corporate affiliates (See Section 7-101 of the Act [220 ILCS 5/7-101].). The file shall include a brief description of each affiliate, the conditions of ownership, and a chart of all affiliates.

(Source: Amended at 27 Ill. Reg. 12489, effective August 1, 2003)