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 * Grizzle Victor   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 V.P., Armstrong Bdg (Last) (First) (Middle) 2500 COLUMBIA AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 01/17/2011 (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 Common Stock (1) 01/17/2011   A   5,862 A $ 0 5,862 (1) D

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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 (2)

$ 42.65

01/17/2011

A

14,385

(2)

01/17/2021

Common Stock (2)

14,385 (2)

$ 42.65 (2)

14,385 (2)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Grizzle Victor 2500 COLUMBIA AVENUE LANCASTER, PA 17603			Executive V.P., Armstrong Bdg

Signatures

/s/Mary J. Huwaldt, power of attorney for Victor Grizzle		01/24/2011
**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)	Represents restricted stock units granted under AWI's 2006 Long-Term Incentive Plan. The restrictions will lapse and the units will vest in three installments as follows: 1,954 shares on January 16, 2012; 1,954 shares on January 16, 2013; and 1,954 shares on January 16, 2014. Each restricted stock unit represents the right to receive one share of common stock; however, the Management Development and Compensation Committee of the Company may settle the restricted stock units in cash if insufficent shares are available at the end of the restriction periods.
(2)	The options are non-qualified and have a ten year term starting January 17, 2011. The options will vest in three equal installments as follows: 4,795 shares on January 17, 2012; 4,795 shares on January 17, 2013; and 4,795 shares on January 17, 2014. Each stock option entitles the holder to purchase one share of AWI common stock at an exercise price equal to $42.65, which may be paid in cash or by delivering shares of AWI stock the holder has owned for at least six months.

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