U-57

                    SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C.

                                 FORM U-57

              NOTIFICATION OF FOREIGN UTILITY COMPANY STATUS

                     Filed under section 33(a) of the
          Public Utility Holding Company Act of 1935, as amended





CMS Operating S.A.
(Name of foreign utility company)



CMS Energy Corporation
(Name of filing company, if filed on behalf of a foreign utility company)



ITEM 1

The name of the entity claiming foreign utility company status is CMS
Operating S.A. ("CMS Operating"). The address of CMS Operating is
Avenida Presidente Roque Saenz Pena 1116, 9th Floor, Buenos Aeries,
Argentina. CMS Operating owns and operates the 128 MW natural gas
fired Ensenada power plant located in the province of Buenos Aries,
Argentina ("Ensenada") .  Ensenada also produces 200 tons of steam
per hour.  CMS Operating also indirectly owns and operates Centrales
Termicas Mendoza, a 540 MW power facility composed of two generating
plants, C.T. Lujan de Cuyo and C.T. Cruz de Piedra.  The Lujan de Cuyo
Power Plant is located on a site adjacent to the YPF S.A. Refinery in
Mendoza, Argentina and uses natural gas, fuel oil and gas oil as fuel.
The Cruz de Piedra Power Plant is situated in a locality of the same
name, in the Department of Maipu, Province of Mendoza, Argentina. CMS
Energy Corporation, a Michigan corporation and an exempt public utility
holding company, owns an interest in CMS Operating through intervening
subsidiaries CMS Enterprises Company and CMS Generation Holdings Company,
each of which are Michigan corporations.  CMS Enterprises owns 99% of
CMS Operating and CMS Generation Holdings Company owns one percent of CMS
Operating.

ITEM 2

Consumers Energy Company, a Michigan corporation and combination electric
and gas utility, is also a  wholly-owned subsidiary of CMS Energy
Corporation.  Consumers Energy Company has not paid any portion of the
investment in CMS Operating.


                                 EXHIBIT A

	The certification required under Section 33(a)(2) of the Public Utility
Holding Company Act from the Michigan Public Service Commission (the
"Certification") is attached hereto.




                                 SIGNATURE


	CMS Energy Corporation has duly caused this statement to be signed on
its behalf by the undersigned thereunto duly authorized.


						By:	/s/ Michael D. Van Hemert
						Name:	Michael D. Van Hemert
						Title:	Assistant General Counsel


Date: May 17, 2000

EX-99

EXHIBIT 99

                          STATE OF MICHIGAN

            BEFORE THE MICHIGAN PUBLIC SERVICE COMMISSION


                                 *****


In the matter of the application of            )
CMS ENERGY CORPORATION for                     )
certification pursuant to Section 33(a)(2) of  )      Case No. U-12224
the Public Utility Holding Company Act of 1935 )
- - -----------------------------------------------)

     At the December 16, 1999 meeting of the  Michigan Public
Service Commission in Lansing, Michigan.


                 PRESENT:  Hon. John G. Strand, Chairman
                           Hon. David A. Svanda, Commissioner
                           Hon. Robert B. Nelson, Commissioner


                                     ORDER
                                     -----

     On December 3,1999, CMS Energy Corporation (CMS) filed an

application requesting certification pursuant to Section 33(a)(2) of

the Public Utility Holding Company Act of 1935 (PUHCA), 15 USC 79z-5b.

CMS is an international energy corporation.  Its principal subsidiary

is Consumers Energy Company (Consumers), a combination electric and

gas utility located entirely in the state of Michigan.

     In a December 21, 1998 order in Case No. U-11858, the Commission

granted CMS's request for certification pursuant to 15 USC 79z-5b for

up to $800 million in additional international investments in the

calendar year 1999.  Pursuant to that order, CMS invested

approximately $84 million in a foreign utility company in 1999.  CMS

believes that there are additional potential investment opportunities

in foreign utility companies throughout the world.  In this

application, CMS seeks a Commission certification that will permit it

to pursue additional equity investments in foreign utility companies

in calendar year 2000, not to exceed $600 million.  CMS agrees to

provide the Commission with 30 days' notice of all investments, in

increments of $50 million.  CMS states that the $600 million of total

international investment requested for 2000 represents about 4.1% of

CMS's September 30, 1999 total assets.

     CMS represents that it is an intrastate holding company exempt

from registration as a holding company under Section 3(a)(1) of PUHCA.

It further represents that its foreign investment subsidiaries are or

will be foreign utility companies that are exempt from regulation

under PUHCA if every state commission having jurisdiction over the

electric or gas rates of an affiliated public utility company

certifies that the state commission has the authority and resources to

protect the utility's ratepayers and that the Commission intends to

exercise that authority.  CMS requests that the Commission grant that

certification with respect to Consumers.

     CMS states that any investments will remain separate from

Consumers and will not have any effect on Consumers' day-to-day

utility services or rates and will not have a material detrimental

effect on the financial viability, capital structure, or cost of

capital of CMS or Consumers.  It says that no utility assets of

Consumers or assets of any Consumers subsidiary will be pledged or

encumbered for this investment.  It commits that CMS and its

affiliates will not seek recovery of the direct or indirect costs of

the investment from Michigan ratepayers and that the proposed

transaction will have no effect on the tax revenues of Michigan

political subdivisions in which any structure, facility, or equipment

of CMS or its subsidiaries is located.  CMS will make available books

and records reasonably necessary for the Commission to determine that

Michigan ratepayers are not being adversely affected.  It acknowledges

that a grant of certification is not approval of the transaction or a

finding that the transaction is reasonable.

     After a review of the application, the Commission finds that it

is appropriate to renew the authority granted in Case No. U-11858 and

to certify that, as to up to $600 million in international investments

in calendar year 2000, it has the authority and resources under

Michigan law to protect Michigan's utility ratepayers and that it

intends to exercise that authority.  The Commission also finds that ex

parte approval of the application is appropriate.  The Commission

grants the requested certification while reserving the right to

prospectively revoke it, as PUHCA permits, and on condition that CMS

and Consumers not seek to recover from Michigan ratepayers any direct

or indirect costs of the investment in foreign utilities.

Furthermore, the granting of the certification is not approval or

endorsement of the transaction.  Finally, each time CMS and its

affiliates have cumulatively invested another $50 million or more in

foreign utility investments, CMS shall provide the Commission with

written notice with 30 days.

     The Commission FINDS that:

     a.  Jurisdiction is pursuant to 1909 PA 106, as amended, MCL

460.551 et seq.; MSA 22.151 et seq.; 1919 PA 419, as amended, MCL

460.51 et seq.; MSA 21.1 et seq.; 1939 PA 3, as amended, MCL 460.1 et

seq.; MSA 22.13(1) et seq.; 1969 PA 306, as amended, MCL 24.201 et

seq.; MSA 3.560(101) et seq.; 15 USC 79z-5b; and the Commission's

Rules of Practice and Procedure, as amended, 1992 AACS, R 460.17101 et

seq.

     b.  With respect to the amount and type of transactions described

in CMS's application, the Commission has the authority and resources

to protect ratepayers subject to its jurisdiction and intends to

exercise that authority.

     c.  Ex parte approval of the application is appropriate.


     THEREFORE, IT IS ORDERED that:

     A.  The certification requested by CMS Energy Corporation

pursuant to 15 USC 79z-5b is granted.  With respect to the amount and

the type of transactions described in the application, the Commission

has the authority and resources to protect ratepayers subject to its

jurisdiction and intends to exercise that authority.

     B.  Each time CMS Energy Corporation and its affiliates have

cumulatively invested another $50 million or more in foreign utility

investments, CMS Energy Corporation shall provide the Commission with

written notice with 30 days.

     C.  CMS Energy Corporation shall make available books and records

necessary for the Commission to determine that ratepayers are not

being adversely affected.

     The Commission reserves jurisdiction and may issue further orders

as necessary.


     Any party desiring to appeal this order must do so in the

appropriate court with 30 days after issuance and notice of this

order, pursuant to MCL 462.26; MSA 22.45.

                           MICHIGAN PUBLIC SERVICE COMMISSION

                           /s/ John G. Strand
                           -------------------------------------------
                           Chairman
     (S E A L)

                           /s/ David A. Svanda
                           -------------------------------------------
                           Commissioner




                           /s/ Robert B. Nelson
                           -------------------------------------------
                           Commissioner



By its action of December 16, 1999.


/s/ Dorothy Wideman
- ------------------------------------
Its Executive Secretary