STOWAGE PROCEDURES Classified material must bestowed in the manner prescribed in chapter 5 of the Department of the Navy Information and Personnel Security Program Regulation, OPNAVINST 5510.1. This publica- tion outlines the physical security standards and requirements that serve as a uniform guide for determining the type and degree of protection for classified material. These standards and require- ments are designed to provide for flexibility as well as adequacy in the physical security program. Keys for padlocks used to protect classified material must be given the same protection as the material they protect. It is essential that combina- tions be known or keys be accessible only to those persons whose official duties demand access to the container involved. The combination or key to the security container must be changed at the time received, at the time any person having knowledge of it transfers from the organizational unit, at anytime there is a reason to believe it has been compromised, or in any case not less than every 12 months. Any document showing the combination to a lock must be of the same classification as the material in the container secured by that lock. Records of combinations must be sealed in an envelope and kept by the security manager, duty officer, or other person- nel designated by the commanding officer. When combination numbers are selected, multiples of 5 (ascending or descending) or personal data such as birth dates and social security numbers should not be used. RECORDS DISPOSAL An AK should be able to determine what records should be held in the files for a period of time or what records should be destroyed or transferred for preservation. Record disposal techniques must keep pace with increased production and dissemination techniques. Temporary records must be identified, scheduled, and regularly destroyed, and perma- nent records must be identified and marked for preservation. The United States Criminal Code (appendix B) provides for fines and penalties including imprisonment for unlawful and willful destruction or removal of government records. OPNAVINST 5510.1 provides for the destruction of classified matter. This and other regulations for safeguarding security information must be followed at all times in applying the provisions outlined in the Navy and Marine Corps Records Disposition Manual, SECNAVINST 5212.5. TRANSFERRING CLASSIFIED MATERIAL Matter classified as Top Secret must be transmitted as prescribed by OPNAVINST 5510.1. Only Secret and lesser classified material may be sent via mail as prescribed by the Department of the Navy Official Mail Management Instruction, OPNAVINST 5218.7. All classified material must remain under U.S. custody and control at all times. Any of the means approved for the transmis- sion of Top Secret material prescribed in chapter 8 of OPNAVINST 5510.1 may be used. Registered mail is used for the transmission of all Secret material, NATO Confidential, and all other Confidential material mailed to an FPO/APO address. Certified mail may be used for the transmis- sion of Confidential (other than NATO) material addressed to contractor facilities cleared for access to classified information under the DOD Industrial Security Program or to any non-DOD agency of the executive branch. Regular First-Class Mail or priority mail should be used for the transmission of Confiden- tial (other than NATO Confidential) material addressed to DOD activities located anywhere in the United States and its territories. TURN-IN OF CLASSIFIED MATERIAL Turn-in of classified material is handled according to the Department of the Navy Information and Personnel Security Program Regulation, OPNAVINST 5510.1. Personnel handling classified items for turn-in must be cleared to handle classified material up to the level of the material being turned in. Top Secret and Secret material is turned in under a continuous chain of receipts. Receipts for Confidential material may be required at the discretion of the transmitter. Receipts for hand-delivered material are obtained on the No. 1 copy of the DD Form 1348-1, which is returned to the activity and filed in the expenditure invoice file. When classified material is mailed or shipped, the special packaging, addressing shipment, and receipt procedures contained in OPNAV- INST 5510.1, chapter 8, must be followed. In such cases, the No. 5 or 6 copy of the DD Form 1348-1 is stamped or annotated with the phrase Con- signee sign and return this copy. When the receipted copy is returned, it is filed (with the retained original) in the expenditure invoice file. 1-9