UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): July 11, 2006

ALION SCIENCE AND TECHNOLOGY CORPORATION

(Exact Name of Registrant as Specified in its Charter)

Delaware	333-89756	54-2061691
(State or Other	(Commission File	(IRS Employer
Jurisdiction	Number)	Identification No.)
of Incorporation)

10 West 35th Street	1750 Tysons Boulevard
Chicago, IL 60616	Suite 1300
(312) 567-4000	McLean, VA 22102
	(703) 918-4480

(Address, including Zip Code and Telephone Number, including
Area Code, of Principal Executive Offices)

     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 (see General Instruction A.2. below):

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

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

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

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

Item 4.01 Change in Registrant’s Certifying Accountant

     On July 11, 2006, Alion Science and Technology Corporation (the “Company”) engaged Deloitte & Touche LLP (“D&T”) as its new principal accountants. The Audit and Finance Committee of the Company’s Board of Directors approved the engagement of D&T at a meeting held on May 8, 2006. At a meeting held on May 9, 2006, the Company’s full Board of Directors ratified the approval by the Audit and Finance Committee of the committee’s decision to engage D&T.

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SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: July 17, 2006

ALION SCIENCE AND TECHNOLOGY CORPORATION
By:	/s/ John M. Hughes
Name:	John M. Hughes
Title:	Chief Financial Officer

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