June 24, 1999

The Honorable David P. Boergers
Secretary
Federal Energy Regulatory Commission
888 First Street, N.E.
Washington, D.C.  20426

Re:	California Independent System Operator Corporation
	Docket No. ER99-2730-000

Dear Secretary Boergers:

	Enclosed for filing please find copies of a tariff sheet for the California Independent System Operator Corporation (“ISO”) FERC Electric Tariff, Original Volume I, submitted in compliance with the Commission’s June 17, 1999, Order in the above-referenced docket.  

	On April 30, 1999, the ISO filed Amendment No. 16 to the ISO Tariff in the above-referenced docket.  Amendment No. 16 proposed to extend the existing GMC rate through December 31, 2000.  

Parties submitted motions to intervene, comments and/or protests to Amendment No. 16, including some that questioned whether Tariff Sheet No. 375 was correct.  On June 4, 1999, the ISO filed an Answer to the motions and comments, indicating that in order to eliminate confusion regarding Tariff Sheet No. 375, the ISO would agree to modify it by deleting the following sentence:  “The Grid Management Charge will be $0.7831 as of March 31, 1998.”

On June 17, 1999, the Commission issued an order accepting Amendment No. 16 for filing, accepting the proposed modification to Tariff Sheet No. 375 and directing the ISO to submit a compliance filing incorporating the ISO’s proposed modification.  California Independent System Operator Corp., 87 FERC ¶ 61,304 (1999). 

	In accordance with that Order, enclosed is a revised Tariff sheet that incorporates the revision ordered by the Commission (Attachment A) as well as a redlined text of the affected tariff provision identifying the changes made in this compliance filing (Attachment B).  Also enclosed is a notice of filing suitable for publication in the Federal Register (Attachment C) and a 3½ inch diskette containing the notice in WordPerfect format. 

In addition, an extra copy of the filing is enclosed.  Please date-stamp the extra copy with the time and date of filing and return it to the messenger.  Thank you for your assistance in this matter.

Respectfully submitted,

__________________________			_________________________
N. Beth Emery					Edward Berlin
Vice President and General Counsel		Kenneth G. Jaffe
Roger E. Smith, Regulatory Counsel		Scott P. Klurfeld
The California Independent			Sara C. Weinberg
   System Operator Corporation			Swidler Berlin Shereff Friedman, LLP
151 Blue Ravine Road				3000 K Street, N.W., #300
Folsom, CA 95630					Washington, D.C.  20007
Tel: (916) 351-2334					Tel: (202) 424-7500
Fax: (916) 351-2350				Fax: (202) 424-7643

Attorneys for the California Independent System Operator Corporation

CERTIFICATE OF SERVICE

	I hereby certify that I have this day served the foregoing document upon each person designated on the official service list compiled by the Secretary in this proceeding.
	Dated at Washington, D.C. this 24th day of June, 1999.

___________________
Sara C. Weinberg
Swidler Berlin Shereff Friedman, LLP
3000 K Street, N.W., #300
Washington, D.C.  20007
Tel: (202) 424-7500
Fax: (202) 424-7643