83 Ill. Adm. Code 506.30
Internal Audits
Section 506
Section 506.30 Internal
Audits
a) Public utilities shall conduct biennial internal audits, or
internal audits conducted by independent public accountants, of the accounting,
for the business other than public utility business. These audits shall test
compliance with this Part, with the cost allocation guidelines submitted to the
Director of Accounting of the Commission, with any applicable Commission
orders, and with 83 Ill. Adm. Code 505. The audits shall include written
reports of conclusions and associated workpapers which shall be available to
the Commission Staff for review. The audit reports shall be submitted to the
Commission's Director of Accounting within 30 days of completion.
b) The first such internal audit report shall be submitted to the
Director of Accounting of the Commission on or before December 1, 1998.
Succeeding audit reports shall be submitted to the Director of Accounting of
the Commission on or before December 1 of each succeeding even numbered year.