APPENDIX "Cc" DRAFT LETTER FROM THE CHAIRMAN TO THE SECRETARY OF DEFENSE 1, Attached hereto is a copy of a letter from the Director, Office of Defense Mobilization, to the Chairman, Atomic Energy Commission, dated April 15, 1955, with a copy of our reply, 2. The Commission has approved declassification of the info rmation covered in paragraph B of the above reference for the range of yields up to and including 100 flegatons., 3. It is requested that the Department of Defense furnish to the Commission for transmittal to the Office of Defense Mobilization the information requested in paragraph B of the referenced correspondence for the range of yields up to 100 megatons for use by the Office of Defense Mobilization in preparing a brief handbook for public guidance in dispersion planning. 4, In addition, as noted in paragraph A of the above reference, we have suggested to the Office of Defense Mobilization that an interdepartmental group be convened to determine the appropriate yield which should be used as the basis for vulnerability planning in connection with the dispersion of industry. We have indicated in our letter to ODM that their staff rather than the interdepartmental group should prepare the handbook for public guidance in dispersal planning. ° ! iy GaP reso Orade ‘ Pyartay RehaRaman SINEattatty etl adAE RIMCRR - 9 -~ , Appendix "c"