CAISO NOTICE: Change in Operating Procedure S-

Market Participants:

Please assure that this Notification is forwarded to your respective
Operating Departments ---

Notification of Operating Procedure Update

* The following new or revised ISO Operating Procedures have been
implemented and are posted for reference on the ISO Website.

ISO Operating Procedure posted: S-301, Unscheduled Flow Procedure
Version: 3.2
Effective Date: 8/6/01
Procedure Purpose: CAISO Unscheduled Flow Procedure details the
responsibilities of the ISO and Scheduling Coordinators (SCs) in
implementing the WSCC Unscheduled Flow (USF) Mitigation Procedure (USFMP).
Summary of changes: See attached
<<S-301 Procedure Change Description V3.2.doc<<

* Please find them at
http://www.caiso.com/docs/2001/08/09/2001080908311913365.pdfunder the
appropriate Operating Procedure section heading.

If you have any questions, please e-mail the 'Procedure Control Desk'
mailbox [mailto:procctrldesk@caiso.com] and we will respond as soon as
possible.

Thank-You,

Operations Support and Training

CRCommunications
CRCommunications@caiso.com