Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Kane Thomas Michael
   2. Issuer Name and Ticker or Trading Symbol
ARMSTRONG WORLD INDUSTRIES INC [AWI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. VP-HR & GovRel
(Last)
(First)
(Middle)
C/O ARMSTRONG WORLD INDUSTRIES, INC., 2500 COLUMBIA AVE		 3. Date of Earliest Transaction (Month/Day/Year)
04/10/2012
(Street)

LANCASTER, PA 17603		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Options $ 27.77 04/10/2012   D(1)     4,371 08/24/2011 08/24/2020 Common Stock 4,371 (1) 0 D  
Stock Options $ 23.82 04/10/2012   A(1)   5,097   08/24/2011 08/24/2020 Common Stock 5,097 (1) 5,097 D  
Stock Options $ 27.77 04/10/2012   D(1)     4,371 08/24/2012 08/24/2020 Common Stock 4,371 (1) 0 D  
Stock Options $ 23.82 04/10/2012   A(1)   5,097   08/24/2012 08/24/2020 Common Stock 5,097 (1) 5,097 D  
Stock Options $ 27.77 04/10/2012   D(1)     4,371 08/24/2013 08/24/2020 Common Stock 4,371 (1) 0 D  
Stock Options $ 23.82 04/10/2012   A(1)   5,097   08/24/2013 08/24/2020 Common Stock 5,097 (1) 5,097 D  
Stock Options $ 41.47 04/10/2012   D(1)     4,887 03/02/2012 03/02/2021 Common Stock 4,887 (1) 0 D  
Stock Options $ 35.57 04/10/2012   A(1)   5,699   03/02/2012 03/02/2021 Common Stock 5,699 (1) 5,699 D  
Stock Options $ 41.47 04/10/2012   D(1)     4,887 03/02/2013 03/02/2021 Common Stock 4,887 (1) 0 D  
Stock Options $ 35.57 04/10/2012   A(1)   5,699   03/02/2013 03/02/2021 Common Stock 5,699 (1) 5,699 D  
Stock Options $ 41.47 04/10/2012   D(1)     4,888 03/02/2014 03/02/2021 Common Stock 4,888 (1) 0 D  
Stock Options $ 35.57 04/10/2012   A(1)   5,699   03/02/2014 03/02/2021 Common Stock 5,699 (1) 5,699 D  
Stock Options $ 50.38 04/10/2012   D(1)     4,092 02/28/2013 02/28/2022 Common Stock 4,092 (1) 0 D  
Stock Options $ 43.21 04/10/2012   A(1)   4,772   02/28/2013 02/28/2022 Common Stock 4,772 (1) 4,772 D  
Stock Options $ 50.38 04/10/2012   D(1)     4,092 02/28/2014 02/28/2022 Common Stock 4,092 (1) 0 D  
Stock Options $ 43.21 04/10/2012   A(1)   4,772   02/28/2014 02/28/2022 Common Stock 4,772 (1) 4,772 D  
Stock Options $ 50.38 04/10/2012   D(1)     4,093 02/28/2015 02/28/2022 Common Stock 4,093 (1) 0 D  
Stock Options $ 43.21 04/10/2012   A(1)   4,772   02/28/2015 02/28/2022 Common Stock 4,772 (1) 4,772 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Kane Thomas Michael
C/O ARMSTRONG WORLD INDUSTRIES, INC.
2500 COLUMBIA AVE
LANCASTER, PA 17603		       Sr. VP-HR & GovRel  

Signatures

 /s/Christopher S. Parisi, Attorney-in-fact   04/12/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reported transactions relate to an adjustment of outstanding stock options and exercise prices in connection with the Registrant's payment of a special cash dividend to shareholders on April 10, 2012, resulting in the deemed cancellation of the original options and the grant of replacement options. An adjustment is required under the terms of the underlying equity incentive plan.

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