Guide to Marking Documents

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Guide to Marking Documents October 4, 2001 i ii Intentionally Left Blankiii Table of Contents Handling and Control of Classified national Security Storage of Classified Automated Information System (AIS) How Information is Classification Derivative Classifiers Why Mark?................................... ........................................ ........................................ ........................................ ..........................14 Essential Required Portion Overall Page Classification by Classification Imagery Original Derivative Derivative Classification with Multiple Derivatively Classifying from a Classification Combination of Original and Derivative Official File Major Component Overall document OCA Extends the Declassify Transmittal Declassif

Guide to Marking Documents October 4, 2001 . i . ii Intentionally Left Blank. iii ... certain information concerning the national defense and foreign relations must be protected against unauthorized disclosure. This information is called national security information and is ... Policy Board issued pursuant to EO 12958 and PDD-29.

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