83 Ill. Adm. Code 506.20
Cost Allocation Guidelines
Section 506
Section 506.20 Cost
Allocation Guidelines
a) Written guidelines for allocating revenues and charges between
the public utility business and the business other than public utility business
shall be submitted to the Director of Accounting of the Commission for approval
by February 12, 1998 unless the public utility conducts public utility business
only or unless the public utility previously has submitted such guidelines.
b) When a public utility that does not conduct any business other
than public utility business as of January 13, 1998 begins to conduct such
other business after January 13, 1998, the public utility shall submit the
guidelines for allocating revenues and charges between the public utility
business and such other business prior to the initiation of such other
business. These guidelines shall be submitted to the Director of Accounting of
the Commission. If the Director of Accounting finds that the cost allocation
guidelines provide a subsidy to the non-public utility business, the Director
of Accounting will notify the gas utility in writing, and the gas utility will
have 45 days to respond.