advisability of having the DOD participate directly in nonnuclear ° development and production. A statement of agreed concepts has been prepared and concurred in by the Department of Defense and the Commission. In furtherance of the agreed weapon concepts, the Commission has recently proposed, subject to the approval of the President, that primary responsibility for the development and production of nonnuclear portions of the gun-type weapons, that is, artillery-fired projectiles and penetrating gun-type bombs, be assigned to the Department of Defense. If this Propos- al is approved, the functions of development, design procurement and production of nonnuclear components and assemblies for guntype weapons would be performed by the laboratories, plants and facilities of the Department of Defense. Research and Develorment New Bombs 28. Mark 11 (gun-type bomb of advanced design, for subsur- ee, face getonation). DELETED or DELETED 5 t on whe Production of the Mark 11 is scheduled to begin in the fall of 1954. 29. DOE ARCHIVES Merk 12 (implosion-type bomb, approximate outside Giameter 22 inches, approximete weight 1,200 pounds). ‘The Gevel- opment phase is expected to be completed in February 1953. Stock- piling should begin in February 1954. 30. Mark 13 (implosion-type bomb, outside diameter 60 inches, weight and length undetermined), Tnis weapon is in the early