October 8, 2021 Nick Prospero Acting Director, Office of Classification US Department of Energy (via email) Dear Mr. Prospero: This is a further proposal for declassification pursuant to 10 C.F.R. 1045.20 regarding information that is classified under the Atomic Energy Act. On September 30, 2021, we requested that the Department of Energy and the Department of Defense declassify the number of warheads in the U.S. nuclear stockpile and the number of weapons that have been dismantled as of the end of Fiscal Year 2021. We would now like to supplement that proposal by requesting declassification of the total number of warheads awaiting dismantlement at the end of FY 2021. Declassification of this number -- the dismantlement queue -- would increase the utility of the other stockpile information that has been (or may yet be) declassified. It would provide an indication of the warhead dismantlement task that remains to be accomplished, with all of its budgetary, environmental, and other implications. And it would provide context for better understanding the progress that has already been made. I am not sure whether this request should be handled as an amendment to our pending request of September 30 or -- since it requests an additional category of information -- as a new, separate request. Either course of action would be acceptable to us. Thank you again for your consideration. Steven Aftergood _____________________ Steven Aftergood Project on Government Secrecy Federation of American Scientists 1112 16th Street NW, Suite 600 Washington, DC 20036 email: saftergood@fas.org voice: (202)454-4691