“Sie Ivy, Ranger, Buster-Jangle, Tumbler-Snapper, and Upshot-Knothole. In Operation Ivy and the forthcoming Castle, he has been designated not only as classification representative for the AEC but also for the Armed Forces, serving on the staff of the Joint Task Force Commander. In this manner it has been possible to maintain a rather uniform classification | policy throughout the weapons and weapons test programs. Within SFO, a series of classification guides for the several weapons test organiza- tions has been prepared, all of which guides have been approved by the Armed Forces and the AEC. In addition, a few specific guides have been prepared for certain of the contractors thecause of the peculiar problems involved. These special guides cannot be incorporated entirely within a general guide for the AEC because they take into consideration peculiar circumstances particularly associated with the contractor. The office of SFO classification representative has maintained detailed and almost continuous contact with the AEC Office of Classification in the preparation of a revised AEC-DOD Classification Guide, a General Classification Guide, a Critical Materials Clas- sification Guide, and in the interpretation of data related to apparent compromise of information. The Nuclear Weapons Classification Subcommittee, organized mainly of SFO personnel under the leadership of Dr. Alvin C. Graves, has made two major recommendations on in- formation classification which, if adopted, would materially assist SFO activities and result in reduced security costs and no loss or weakening of national security. - The first of these is classification recognition that there is no security involved in the approximate yield of nuclear detonations within the continental limits. It is not proposed that these yields should be publicly announced, but that no information should be classified merely because it gives an approximation of such yields. The second recommendation is to adapt to the nuclear weapon program a principle which has been adopted in the reactor field and is now identified as the "black box" idea. This is especially applied to those items of the nuclear weapon which are clearly of a military nature and not essentially an AEC matter, such as the ballistic case and fuzing system for nuclear weapons and the outer case of an aerial bomb, guided missile, artillery projectile, and the like. Declassification Dr. Norris E. Bradbury, Director, LASL, in his capacity as Coordinating Organization Director for all activities within SFO, is in direct charge of the SFO Declassification program. Dr. Ralph Carlisle Smith, LASL, is his Executive Officer for declassification. There is no field organization as such. The individual, contractor, or AEC unit pro- posing declassification of a report or other material routes it to the Coordinating Organization Director. Field Classification Boards usually provide an advisory opinion to reflect thinking in the operational area immediately concerned. A ag The Coordinating Organization Director is advised by Responsible Reviewers, re- commended by the Manager, SFO, and appointed by the General Manager, AEC. One member of the LASL staff is also a Senior Reviewer for the AEC and assists on SFO matters as required. Responsible Reviewers are recognized authorities in their respective fields and review documents submitted for declassification which fall within their fields of special-~ ization. Appointment in the 1950-1953 period of Responsible Reviewers at Sandia Laboratory recognized that the work of that laboratory was sufficiently specialized to require specially- trained reviewers in order to expedite the declassification review of specific documents. DOES . on //9