Dated: June 2, 2006

RECEIVED

BEFORE THE ILLINOIS POLLUTION CONTROL BOARD

J es T. Harrington

A ; JI '41A

tomey ARDC No . 1132806

James T. Harrington

David L. Rieser

McGuireWoods LLP

77 West Wacker Drive, Suite 4100

Chicago, IL 60601

Telephone : 312/849-8100

\4013802 .1

APPEARANCES

The undersigned, hereby enter our Appearances in this proceeding on behalf of

Petitioners, Ameren Energy Generating Company, AmerenEnergy Resources Generating

Company, and Electric Energy Inc .

David L. Rieser

Attorney ARDC No . : 3128590

JUN 0 2 2006

IN THE MATTER OF :

PROPOSED NEW CAIR

SO2,

CAIR NO,

ANNUAL AND CAIR NO, OZONE SEASON

R06-026

Pollution

STATEOFControl

ILLINOISBoard

TRADING PROGRAMS, 35 ILL. ADM.

CODE 225, CONTROL OF EMISSIONS

FROM LARGE COMBUSTION SOURCES,

SUBPARTS A, C, D and E

(Rulemaking - Air)

---

IN THE MATTER OF :

PROPOSED NEW CAIR SO2, CAIR NO,

ANNUAL AND CAIR NO, OZONE SEASON

TRADING PROGRAMS, 35 ILL

. ADM.

CODE 225, CONTROL OF EMISSIONS

FROM LARGE COMBUSTION SOURCES,

SUBPARTS A, C, D and

E

\4013802 .1

BEFORE THE ILLINOIS POLLUTION CONTROL BOARD

NOTICE OF FILING

To : John J

. Kim, Managing Attorney

Charles E

. Matoesian, Assistant Counsel

Gina Roccaforte, Assistant Counsel

Illinois Environmental Protection Agency

Division of Legal Counsel

1021 North Grand Avenue East

Post Office Box 19276

Springfield, IL 62794-9276

R06-026

(Rulemaking -

Air)

Ms. Dorothy Gunn, Clerk

Illinois Pollution Control Board

James R. Thompson Center

1000 West Randolph Street

Suite 11-500

Chicago, IL

60601

Please take notice that on June 2, 2006, the undersigned caused to be filed with

the Clerk of the Illinois Pollution Control

Board the Appearances

Harrington and David L. Rieser on behalf of Petitioners, Ameren

Energy Generating

Company, AmerenEnergy Resources Generating Company,

and Electric Energy Inc .,

copies of which are herewith served upon you

.

James T. Harrington

David L. Rieser

McGuireWoods LLP

77 West Wacker, Suite 4100

Chicago, IL 60601

Telephone: 312/849-8100

By:

of James T

.

1 /

. AW

411 I

6

e of the Attorneys or Petitio

4

J

---

CERTIFICATE OF SERVICE

I, David L

. Rieser, one of the attorneys for Petitioners, hereby certify that I served

a copy of Appearances

on behalf of Petitioners upon those listed on the attached Notice

of Filing on June 2, 2006 via First Class Mail, postage prepaid .

James T

. Harrington

David L. Rieser

McGuireWoods LLP

77 West Wacker, Suite 4100

Chicago, Illinois 60601

Telephone: 312/849-8100

\4013802

.1

of the Attorneys for Petitioner