SECRET -9and the tining and manner of puvlic release of information, in the folloving categories: A. Peaceful aprlicetions of nuclear energy of potential interest to the peoples and governi.ents of the world. B. Nuclear energy developments of a weapons category including announcenent of Pacific and Nevada Proving Grounds tests and any subsequent public infornation materials connected therewith. C, Weapons developments reflecting on offensive or defensive capabilities involving; nuclear characteristics» D. Announceients of national civit defense, air defense, or international stratecic air cormand exercises, "Release of public infortation in areas of non-vilitary defense related to the following vrograns will be coordinated by the Cffice of Defense Wobilization: 46 eduction of urban target vulnerabilities, B. Civilian defcnse activities other than those cited aboveée C. Continuity of industry. D, Continuity of Goverunent. E, Fhysical security of facilitics, "OCB guidance as to clinate-of-opinion factors effecting the tliing of release of infornation in these ecaterories will be furnished by the Operations Coordinating Board to the SECRET arr th hat gn git . war al Ne tit Cea was as