December 21, 2005, Department letter reporting completion of Commitment 510 in the 2000-1 implementation plan, Stabilization and Storage of Nuclear Maerial, which calls for a survey and reprioritization of all non-Technical Area-55 excess materials by December 2005

[DOE LETTERHEAD]

National Nuclear Security Administration

December 21, 2005

The Honorable A. J. Eggenberger

Chairman

Defense Nuclear Facilities Safety Board

625 Indiana Avenue, N.W., Suite 700

Washington, D.C. 20004-2901

Dear Mr. Chairman:

This is to inform you that Commitment 510 in the Los Alamos National Laboratory Implementation Plan for the Defense Nuclear Facilities Safety Board Recommendation 2000-1, Stabilization and Storage of Nuclear Material, has been completed (see enclosed). Commitment 510 was to survey and reprioritize all non-Technical Area-55 excess materials by December 2005.

If you have any further questions, please contact Xavier Ascanio at (301) 903-3757.

Sincerely,

Thomas P. D’Agostino

Assistant Deputy Administrator

for Program Integration

Enclosure

cc w/enclosure:

M. Whitaker, DR-1

E. Wilmot, LASO