June 30, 2013 Dr. Andrew Weston-Dawkes Office of Classification Department of Energy Dear Dr. Weston-Dawkes: This is a proposal for declassification pursuant to 10 C.F.R. 1045.20 regarding information classified under the Atomic Energy Act. We request that the Department of Energy initiate the declassification of the total size of the U.S. nuclear stockpile and the number of weapons dismantled annually as of the end of each fiscal year from FY 2010 through FY 2013. The Department has previously declassified such information for each fiscal year through FY 2009 (as per DOE Classification Bulletin WNP-128 dated May 6, 2010). Essentially, we are requesting that this declassification action be extended through the end of FY 2013. The reasons for the proposed declassification are the same as the reasons for the Department's previous declassification of stockpile information: Nuclear transparency can strengthen non-proliferation efforts, and can lay a foundation for future arms control efforts. Furthermore, as a matter of principle, information should remain classified only when doing so serves a valid and compelling national security purpose. We suggest that continued classification of the size of the nuclear stockpile does not meet that criterion. We therefore request that the Department consider declassifying this information, as provided in 10 C.F.R. 1045.20. Thank you for your consideration. Steven Aftergood Project on Government Secrecy Federation of American Scientists 1725 DeSales Street NW, Suite 600 Washington, DC 20036 email: saftergood@fas.org voice: (202)454-4691