¢. Note that the DOD will be advised of the change in plans forOperation PILGRIM. d. Note that Presidential approval of these plans for CY 1957te: tests will be requested by letter such as that in Appendix "E" immediately after confirmation from DOD that they concur in and will support the operation, and that Presidential authorization for expenditure of the required fissionalbe materials will be requested as soon as possible. e. Note that the draft public announcement of the operation(Appendix "H" of AEC 944) and the draft letter to the JCAE and the Nevada Congressmen (Appendices "I" and "J", respectively, of AEC 944) will be revised to describe the approved plan for conducting PILGRIM. ome mmm mmm maa amit te i LIST OF ENCLOSURES Page No. APPENDIX "A"~ Background and DASCUSSLONsesesreeseeeer 6 APPENDIX "B"~ Schedule of ShotSsvcsreccevescevececees Le APPENDIX "C"- Determination of D-FactorPiwvccsececaveee 15 APPENDIX "D"- Impact on Joint Task Force. .cecosevsves 20 APPENDIX "E"~ Draft Letter to the PreSident.icsrcevseses 23

Select target paragraph3