13-13. An interim clearance is effective for a total of 13-19. As a minimum, the combination to a security how many months, excluding the extension? container must be changed at least how often? 1. 5 1. Every   10  months 2. 6 2. Every   12  months 3. 7 3. Every   18  months 4. 8 4. Every  24  months 13-14. You may store valuables, such as money and 13-20. When safe combinations are selected, numbers jewels, in the same container used to safeguard such as birth dates and social security numbers classified material. should be used. 1. True 1. True 2. False 2. False 13-15. Aboard ship, what type of material can NOT be 13-21. Your vault contains Top Secret material. What stored in a lock-bar cabinet? should be the classification of the combination? 1. Top Secret 1. Top Secret 2. Secret 2. Secret 3. Confidential 3. Confidential 4. Unclassified 4. Unclassified 13-16. Aboard ship, a strongroom with surrounding areas locked, alarmed, and access to the area patrolled by U.S. personnel, may be used to store Top Secret material. 1. True 2. False 13-17. What instructions should you use to select 13-23. What forms should be used at the end of each security equipment from the National Supply working day to ensure that all classified material Schedule? is stowed properly? 1. OPNAVINST 4790.4 1. OPNAV  Forms  700  and  701 2. OPNAVINST 5510.1 2. OPNAV  Forms  701  and  702 3. SECNAVINST 5212.5 3. OPNAV  Forms  702  and  703 4. SECNAVINST 10463.1 4. OPNAV  Forms  703  and  704 13-18. What form should be maintained for each 13-24. The register should be retained a total of how security container used to store classified many years after the Top Secret document has material? been transferred, downgraded, or destroyed? 1. OPNAV  700 1. 2. OPNAV  701 2. 3. OPNAV  5510/21 3. 4. OPNAV  5550/21 4. 13-22. What is the standard cover sheet for a Confidential message? 1. OPNAV  Form  702 2. OPNAV  Form   703 3. OPNAV  Form  704 4. OPNAV  Form   705 1 yr 2 yr 3 yr 5 yr 84