To Market Participants and Scheduling Coordinators:

The ISO received today a subpoena from the California Public Utilities
Commission. The subpoena is attached.  The subpoena requires response by
April 2. The subpoena includes a description of the confidential treatment
that the CPUC will afford documents produced in response.  In accordance
with the protective order in 00-08-002, the ISO will mark as confidential
documents it produces to the CPUC that contain information subject to
20.3.2.  Concerns related to the subpoena should be directed directly to the
California Public Utilities Commission. The CPUC contact related to the
subpoena is Barbara Ferguson who can be reached at (415) 703-2682.   The ISO
would appreciate being notified also of any concerns.  The ISO contacts are
Jeanne Sol, at jsole@caiso.com and Norma Formanek at
<mailto:nformanek@fbm.com> nformanek@fbm.com both of whom should be copied
on correspondence.

Jeanne M. Sol,
Regulatory Counsel
California ISO
(916) 608-7144
____________________________________________________________________________
_______________________________________

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 - 3-26ISO Subpoena.doc