83 Ill. Adm. Code 650.140
Accounting Instruction 30
Section 650
Section 650.140 Accounting
Instruction 30
Paragraph C of Accounting
Instruction 30, "Utility Plant – Common Plant shall be restated as
follows:
"The utility shall be prepared to show at any time by
utility plant accounts (351 to 398) the following:
a) the book cost of common utility plant,
b) the allocation of such cost to the respective departments
using the common utility plant, and
c) the basis of the allocation."