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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Ready Frank J
   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)
Executive Vice President
(Last)
(First)
(Middle)
C/O ARMSTRONG WORLD INDUSTRIES, INC., 2500 COLUMBIA AVENUE		 3. Date of Earliest Transaction (Month/Day/Year)
12/17/2010
(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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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 option $ 29.37 12/17/2010   D(1)     29,018 10/02/2008 10/02/2016 Common Stock 29,018 (1) 0 D  
Stock option $ 22.55 12/17/2010   A(1)   37,785   10/02/2008 10/02/2016 Common stock 37,785 (1) 37,785 D  
Stock option $ 29.37 12/17/2010   D(1)     29,019 08/28/2009 10/02/2016 Common stock 29,019 (1) 0 D  
Stock option $ 22.55 12/17/2010   A(1)   37,785   08/28/2009 10/02/2016 Common stock 37,785 (1) 37,785 D  
Stock option $ 29.37 12/17/2010   D(1)     29,019 08/28/2009 10/02/2016 Common stock 29,019 (1) 0 D  
Stock option $ 22.55 12/17/2010   A(1)   37,786   08/28/2009 10/02/2016 Common stock 37,786 (1) 37,786 D  
Stock option $ 13.46 12/17/2010   D(1)     22,381 08/28/2009 02/23/2019 Common stock 22,381 (1) 0 D  
Stock option $ 10.34 12/17/2010   A(1)   29,149   08/28/2009 02/23/2019 Common stock 29,149 (1) 29,149 D  
Stock option $ 13.46 12/17/2010   D(1)     22,381 08/28/2009 02/23/2019 Common stock 22,381 (1) 0 D  
Stock option $ 10.34 12/17/2010   A(1)   29,149   08/28/2009 02/23/2019 Common stock 29,149 (1) 29,149 D  
Stock option $ 13.46 12/17/2010   D(1)     22,382 08/28/2009 02/23/2019 Common stock 22,282 (1) 0 D  
Stock option $ 10.34 12/17/2010   A(1)   29,150   08/28/2009 02/23/2019 Common stock 29,150 (1) 29,150 D  
Stock option $ 38.06 12/17/2010   D(1)     12,634 04/01/2011 04/01/2020 Common stock 12,634 (1) 0 D  
Stock option $ 29.23 12/17/2010   A(1)   16,455   04/01/2011 04/01/2020 Common stock 16,455 (1) 16,455 D  
Stock option $ 38.06 12/17/2010   D(1)     12,634 04/01/2012 04/01/2020 Common stock 12,634 (1) 0 D  
Stock option $ 29.23 12/17/2010   A(1)   16,455   04/01/2012 04/01/2020 Common stock 16,455 (1) 16,455 D  
Stock option $ 38.06 12/17/2010   D(1)     12,635 04/01/2013 04/01/2020 Common stock 12,635 (1) 0 D  
Stock option $ 29.23 12/17/2010   A(1)   16,455   04/01/2013 04/01/2020 Common stock 16,455 (1) 16,455 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Ready Frank J
C/O ARMSTRONG WORLD INDUSTRIES, INC.
2500 COLUMBIA AVENUE
LANCASTER, PA 17603		       Executive Vice President  

Signatures

 /s/ Jeffrey D. Nickel, attorney-in-fact   12/21/2010
**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 involved an amendment of outstanding options due to the recapitalization of the Company, resulting in the deemed cancellation of the "old" options and the grant of replacement options.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.