Exhibit 5.2

                     IRS DETERMINATION LETTER AS TO THE PLAN

INTERNAL REVENUE SERVICE                           DEPARTMENT OF THE TREASURY
P.O. BOX 2508
CINCINNATI, OH 45201
                                               Employer Identification Number:
                                                52-2107911
Date: FEB 15 2002                              DLN:
                                                17007277000021
USEC INC                                       Person to Contact:    ID# 11205
C/O TERRA CASTALDI                              BRIAN HOHLER
MORGAN LEWIS & BOCKIUS LLP                     Contact Telephone Number:
1111 PENNSYLVANIA AVENUE NW                     (877) 829-5500
WASHINGTON, DC 20004                           Plan Name:
                                                USEC SAVINGS PROGRAM

                                               Plan Number:  001


Dear Applicant:

     We have made a favorable  determination  on the plan identified above based
on the information you have supplied.  Please keep this letter,  the application
forms submitted to request this letter and all correspondence  with the Internal
Revenue Service  regarding your  application for a determination  letter in your
permanent records. You must retain this information to preserve your reliance on
this  letter.

     Continued  qualification  of the plan under its present form will depend on
its  effect  in  operation.   See  section   1.401-1(b)(3)  of  the  Income  Tax
Regulations. We will review the status of the plan in operation periodically.

     The enclosed  Publication  794 explains the  significance  and the scope of
this favorable determination letter based on the determination requests selected
on your application  forms.  Publication 794 describes the information that must
be  retained  to have  reliance  on this  favorable  determination  letter.  The
publication  also  provide  examples of the effect of a plan's  operation on its
qualified  status and discusses the reporting  requirements for qualified plans.
Please read Publication 794.

     This  letter  relates  only to the status of your plan  under the  Internal
Revenue Code. It is not a determination regarding the effect of other federal or
local statutes.






     This  determination is subject to your adoption of the proposed  amendments
submitted in your letter dated February 13, 2002. The proposed amendments should
be  adopted  on or before  the date  prescribed  by the  regulations  under Code
section 401(b).

     This  determination  letter is applicable for the amendment(s)  executed on
December 28, 2000.

     Based on the information  supplied, we have determined that your plan meets
the requirements of section 401(k) of the Internal Revenue Code.

     This letter considers the changes in qualification requirements made by the
Uruguay Round Agreements Act, Pub. L. 103-465, the Small Business Job Protection
Act of 1996, Pub. L. 104-188, the Uniformed Services Employment and Reemployment
Rights Act of 1994,  Pub. L. 103-353,  the Taxpayer  Relief Act of 1997, Pub. L.
105-34, the Internal Revenue Service  Restructuring and Reform Act of 1998, Pub.
L. 105-206, and the Community Renewal Tax Relief Act of 2000, Pub. L. 106-554.

     This letter may not be relied on with respect to whether the plan satisfies
the  requirements  of section  401(a) of the Code,  as  amended by the  Economic
Growth  and  Tax  Relief  Reconciliation  Act of  2001,  Pub.  L.  107-16.

     This  requirement  for  employee   benefits  plans  to  file  summary  plan
descriptions  (SPD) with the U.S.  Department of Labor was eliminated  effective
August 5, 1997. For more details, call 1-800-998-7542 for a free copy of the SPD
card.

     We have sent a copy of this letter to your  representative  as indicated in
the power of attorney.

     If you have  questions  concerning  this matter,  please contact the person
whose name and telephone number are shown above.

                                            Sincerely yours,

                                            /s/ Paul T. Shultz

                                            Paul T. Shultz
                                            Director,
                                            Employee Plans Rulings & Agreements


Enclosures:
Publication 794