83 Ill. Adm. Code 411.180
System Protection
Section 411
Section 411.180 System
Protection
a) In the event that the equipment or facilities of a customer or
other entity are being operated in a manner that is inconsistent with the
jurisdictional entity's tariffs, terms and conditions of service, or any
contract between the jurisdictional entity and the customer or other entity,
and such operation poses, in the reasonable judgment of the jurisdictional
entity, an imminent threat to the reliability of service to customers or to
person or property, the jurisdictional entity shall have the right, but not the
obligation, to immediately discontinue service to those points of service that
supply power or energy to such equipment or facilities until such time as the
threat can be eliminated and service restored. The jurisdictional entity shall
give as much notice of such discontinuance of service as is reasonably possible
to the affected customer. Temporary discontinuance of service pursuant to this
Section shall be deemed to be in compliance with 83 Ill. Adm. Code 280.130(k).
b) Notwithstanding anything in the rules of the Commission to the
contrary, a jurisdictional entity may lawfully take such actions as are
required by federal law or standards adopted under federal law, or by an
organization authorized by federal authority, to protect the security of the
bulk power system and/or to provide for the continuous supply of power to
facilities regulated under federal law.