Which instruction provides the standard subject identification codes?

• A. SECNAVINST 5210.2
• B. SECNAVINST 5216.5
• C. SECNAVINST 5210.1
• D. SECNAVINST 5211.3

Answer: (A)

Standard Subject Identification Codes are used to categorize Navy documents by topic for consistent filing and easy retrieval. The instruction that defines and prescribes how these codes are structured and applied is the Secretary of the Navy Instruction in the 5210 series that directly addresses standard subject identification. This instruction sets the SSIC structure, how codes are assigned to subjects, and how they should appear on correspondence and records. Because the question asks which instruction provides the SSICs, this specific 5210-series instruction is the correct one. The other listed instructions govern different policies and do not define the SSIC system.