4A, Only a very linited nuuber of official observers, aftcr cloarance hy the AEC will witness the cncration. No rupre- sontntives of tho press or foreign personnel will be attached to the Joint Task Porce, Photoeraphic equipnent, other than for official photographic purposes, is forbidden. “Consorship or personal mail or comzunications is not contemplated, 5. The Joint Chiefs of Staff have cstablishee military sccurlty classifications for certain phases of operations as follows: sccrot ~ the location of the test site and the general tine of conducting tests as well as any infornation which will reluce studics and preparation ta Q particular test. Top Secret ~- the target date for a particular test. It is believed that military ruquirenents will dictate the periocic downgrading of the above entovorivs of infurmation. such downgrading will be accouplished directly by the Joint Task Force Commander as wllitary requirenents dictate, The downgrading of any atonic energy "restricted data" will be accomplished only by the 2.0¢, 6. The release to the public of any information cn the sclontific and technical aspects of the operation will be the responsibility of the anc, 7. It may be adviseble from tine ta time to reloasc informia- tion on tho military participation in the test. Such relvase of information will be made only with the appreval of tho secrotary of Defense in cach case. Accordingly, no relcases concornin: the operation will cuanate dircetly or indirectly fron the Arny, the Navy or the Air Forco. Enclosure ''c"