83 Ill. Adm. Code 460.340
Metering Service Requirements
Section 460
Section 460.340 Metering
Service Requirements
a) Each service watt-hour meter shall have a register or display
on the front of the meter that: displays energy consumption in a definite and
known proportion to the actual energy consumption of that customer; is plainly
visible; and can be read by the customer. This requirement may be waived in
writing by the customer. This requirement shall not affect the MSP's right to
secure meters for safety reasons or in situations in which the meter is subject
to excessive risk of damage or tampering. At the customer's request, a
representative for the MSP shall explain to the customer how to read the meter
used for billing that customer.
b) If a billing multiplier is used to calculate customer usage,
the MSP shall mark the billing multiplier on the front of the meter (or other
location on the metering installation where the multiplier is plainly visible)
and identify it as a billing multiplier at the time of installation or test,
using a permanent marking method.
c) No meter shall be installed that is known to be mechanically
or electrically defective, or that has not been tested in accordance with this
Subpart and shown to comply with the accuracy requirements in this Subpart.
d) Meters shall be installed so as to be accessible to metering
personnel for reading, testing, and making adjustments and repairs.
e) Meters installed by MSPs shall, at a minimum, meet the
standards set forth in Section 4.7 of the American National Standards
Institute's (ANSI) Code for Electricity Metering (1995 edition, approved June
12, 1995, published by the National Electrical Manufacturers Association, 1300
N. 17th Street, Suite 1847, Rosslyn, Virginia 22209). This incorporation does
not include any later amendment or edition.
f) The MSP may refuse to install a meter or to serve a customer
if, in the MSP's judgement, the metering installation is hazardous or of such
character that satisfactory service cannot be provided. In case of refusal, the
MSP shall inform the customer in writing of the reason for refusal to render
service and shall notify within 24 hours by telephone or in person the customer
and all entities providing service to that customer.