83 Ill. Adm. Code 712.335
Projected Regulated/Nonregulated Shared Usage
Section 712
Section 712.335 Projected
Regulated/Nonregulated Shared Usage
a) The costs of network investment which is shared by both
regulated and nonregulated services are normally recovered on the basis of
tariff rates. Any shared investment which is not utilized at tariff rates is
apportioned on the basis of peak projected nonregulated usage.
b) The forecasting process is completed annually for each cost pool
and uses a three year forecasting period. During each forecast, the highest
level of forecast nonregulated usage is determined and used to apportion the
costs of investment. When the tracking process identifies a variance between
forecast and actual usage, a reconciliation shall be required. If actual
nonregulated usage has been greater than the cumulative forecast, additional
investment is to be transferred from the regulated activities.
c) The forecasting of usage is the basis for the apportionment of
the Shared Cost Pools in the following accounts.
Account 2210 Central Office Switching
Account 2220 Operator Systems
Account 2230 Central Office Transmission
Account 2410 Cable and Wire Facilities