Dated: June 26, 2008

David L. Rieser

d

Filing on June 26, 2008 via First Class Mail, posta

One o ttorneys

fir merenEnergy

RECEIVED

BEFORE THE ILLINOIS POLLUTION CONTROL BOARD

CLERK'S

OFFICE

AMERENENERGY RESOURCES

GENERATING COMPANY

v.

ILLINOIS ENVIRONMENTAL

PROTECTION AGENCY

JUN 2 6 2008

STATE OF

ILLINOIS

Pollution Control Board

Case No. PCB06-126

Air Permit Appeal

WAIVER OF DECISION DATE

NOW COMES the Petitioner, by its Attorneys, David L. Rieser and McGuireWoods LLP

and waives the Board's statutory decision date in this matter until January 6, 2009.

McGuireWoods LLP

77 West Wacker, Suite 4100

Chicago, IL 60601

Telephone: 312/849-8100

CERTIFICATE OF SERVICE

I, David L. Rieser, one of the attorneys for AmerenEnergy, hereby certify that I

served a copy of Waiver of Decision Date upon those listed on the attached Notice of

McGuireWoods LLP

77 West Wacker, Suite 4100

Chicago, Illinois 60601

Telephone: 312/849-8100

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