Intelligence, Security and Public Information CJTF SEVEN No, 1<53 f. Each basic unit, ship or detachment participating in Operation CASTLE will have an officer designated as Security Officer, whose primary duties will include security training, enforcement of security regulations and supervising the administering, grading and recording the results of security examinations. 5, Personnel Clearances. Each task group commander ig responsible that all personnel participating in Operation CASTLE are cleared in accordance with CJTF SEVEN security memoranda. 6. Classification Criteria. A "Classification Guide for Operation CASTLE", concerning all pertinent classification criteria, will be issued to the task group commanders for their guidance. 7. Travel Security Control a. CINCPAC Serial 020, dated 1 April 1952, outlines the requirements for entrance to the ENIWETOK-BIKINI operational or closed area, as defined on page 1, paragraph la(4) of this operation order. b. All persons who are authorized to enter the ENIWETOK~BIKINI operational area will be initially cleared for entry under the provisions of CINCPAC Serial 020. Task group commanders may authorize reentry without recourse to CINCPAC. c, The Commander, TG 7.2, is responsible that individuals arriving at the ENIWETOK-BIKINI operational area who have not been cleared for entry under CINCPAC Serial 020, or reentry as provided in the preceding paragraph, are restricted to ENIWETOK ISLAND and unclassi-~ d. Movements of surface vessels and aircraft within the ENIWETOKBIKINI operational area will be monitored by ATCOM, ENIWETOK. e. Travel of personnel within the ENIWETOK-BIKINI operational area will be controlled by a badge system for access to the higher classified areas. 8. Security Areas a. The “ENIWETOK~BIKINI Danger Area", as defined on page 1, paragraph la(3) of this operation order, consists of three (3) classi- fied area categories, as defined by AEC GM Security Bulletin No. 18, for purposes of security enforcement. These areas are: (1) Exclusion Area. A security area containing a security interest which is of such nature that access to this area constitutes, for all practical purposes, access to the security interest contained therein - i.e., a shot site or assembly area. (2) Limited Area. A security area containing a security interest in which area uncontrolled movement would permit access to the secu- rity interest contained therein; but such access may be prevented by escort and other internal restrictions and controls - i.e., PARRY ISLAND. C=3 Rev. 9-25-53 ChA.2 rom fied information pending proper clearance.