-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, CAOIhDheOEouscRhHvO0khNa4nG90FAKQ7I2aW40XAq1X20KFhv16aIGQLdnhDLg TSd/1uzs4lbZRAFm47f1KQ== 0000897069-09-001097.txt : 20090629 0000897069-09-001097.hdr.sgml : 20090629 20090629140506 ACCESSION NUMBER: 0000897069-09-001097 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20090626 ITEM INFORMATION: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers FILED AS OF DATE: 20090629 DATE AS OF CHANGE: 20090629 FILER: COMPANY DATA: COMPANY CONFORMED NAME: INTERSTATE POWER & LIGHT CO CENTRAL INDEX KEY: 0000052485 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 420331370 STATE OF INCORPORATION: IA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-04117 FILM NUMBER: 09915367 BUSINESS ADDRESS: STREET 1: 200 FIRST ST SE STREET 2: ALLIANT ENERGY TOWER CITY: CEDAR RAPIDS STATE: IA ZIP: 52401 BUSINESS PHONE: 3193984411 MAIL ADDRESS: STREET 1: 200 FIRST ST SE STREET 2: ALLIANT ENERGY TOWER CITY: CEDAR RAPIDS STATE: IA ZIP: 52401 FORMER COMPANY: FORMER CONFORMED NAME: IES UTILITIES INC DATE OF NAME CHANGE: 20020103 FORMER COMPANY: FORMER CONFORMED NAME: IES UTILITIES INC DATE OF NAME CHANGE: 19940107 FORMER COMPANY: FORMER CONFORMED NAME: IOWA ELECTRIC LIGHT & POWER CO DATE OF NAME CHANGE: 19920703 FILER: COMPANY DATA: COMPANY CONFORMED NAME: WISCONSIN POWER & LIGHT CO CENTRAL INDEX KEY: 0000107832 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 390714890 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 000-00337 FILM NUMBER: 09915366 BUSINESS ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 BUSINESS PHONE: 608-4583314 MAIL ADDRESS: STREET 1: 4902 N BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ALLIANT ENERGY CORP CENTRAL INDEX KEY: 0000352541 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 391380265 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-09894 FILM NUMBER: 09915365 BUSINESS ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 BUSINESS PHONE: 608-458-3314 MAIL ADDRESS: STREET 1: 4902 NORTH BILTMORE LANE STREET 2: PO BOX 77007 CITY: MADISON STATE: WI ZIP: 53707-1007 FORMER COMPANY: FORMER CONFORMED NAME: INTERSTATE ENERGY CORP DATE OF NAME CHANGE: 19980427 FORMER COMPANY: FORMER CONFORMED NAME: WPL HOLDINGS INC DATE OF NAME CHANGE: 19920703 8-K 1 cmw4371.htm CURRENT REPORT

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

_________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934

_________________

	Date of Report
	(Date of earliest
	event reported):	June 26, 2009

Commission	Name of Registrant, State of Incorporation, Address of	IRS Employer
File Number	Principal Executive Offices and Telephone Number	Identification Number
1-9894	Alliant Energy Corporation	39-1380265
	(a Wisconsin corporation)
	4902 N. Biltmore Lane
	Madison, Wisconsin 53718
	Telephone (608) 458-3311
0-4117-1	Interstate Power and Light Company	42-0331370
	(an Iowa corporation)
	Alliant Energy Tower
	Cedar Rapids, Iowa 52401
	Telephone (319) 786-4411
0-337	Wisconsin Power and Light Company	39-0714890
	(a Wisconsin corporation)
	4902 N. Biltmore Lane
	Madison, Wisconsin 53718
	Telephone (608) 458-3311

This combined Form 8-K is separately filed by Alliant Energy Corporation, Interstate Power and Light Company and Wisconsin Power and Light Company.

_________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[ ]	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[ ]	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[ ]	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[ ]	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) On June 26, 2009, James A. Leach informed the Chairman of the Boards of Directors (the “Boards”) of Alliant Energy Corporation, Interstate Power and Light Company and Wisconsin Power and Light Company that he will be required to resign from the Boards effective upon his confirmation to the post of Chairman of the National Endowment of the Humanities. Mr. Leach’s confirmation is anticipated to occur before August 2009.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, Alliant Energy Corporation, Interstate Power and Light Company and Wisconsin Power and Light Company have each duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	ALLIANT ENERGY CORPORATION
Date: June 29, 2009	By: /s/ Barbara J. Swan
	Barbara J. Swan
	Executive Vice President-General Counsel
	and Chief Administrative Officer
	INTERSTATE POWER AND LIGHT COMPANY
Date: June 29, 2009	By: /s/ Barbara J. Swan
	Barbara J. Swan
	Executive Vice President-General Counsel
	and Chief Administrative Officer
	WISCONSIN POWER AND LIGHT COMPANY
Date: June 29, 2009	By: /s/ Barbara J. Swan
	Barbara J. Swan
	President

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