ATOMIC ENERGY COMMISSION QUARTERLY PROGRESS REPORT, JANUARY - MARCH 1956 Report to the General Manager by the Controller 1, In accordance with the plan outlined in the Chairman's letter of August 24, 1955, to Senator Anderson, four classified progress reports are to be submitted to the Joint Committee on Atomic Energy during eéch year, as of the end of each calendar quarter, 2, The report submitted herewith, for the period January March 1956, is not intended necessarily to be a comprehensive Program Status Report, December 31, 1955. 3. All material in the report has been written as of Merch 31, 1956. Most developments occurring after the Marsh 31 date can and rrobably should be held for tne April - dune report, However, if it appears that there are more recent items of sufficient importance to be added to the report, the addition can best be eéccomplished by the use of foctnotes, hk, Appendix "Aa" contains portions of the report bearing a classification of SECRET or lower, Fart II - Special 1 Nuclear Materials and Part III - Weapons are being distributed as separate staff papers, 5. As in the pest, NOE Part III - Weapons, will be printed as a separate TOP SECRET document to facilitate strict control of its Gistribution, The remainder of the report will te printed as two When serarated from enclosures

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