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SECNAVINST 2251.1 — NAVY CRYPTOGRAPHIC MODERNIZATION REPORTING

SECNAVINST 2251.1 is listed as current Current
in the DON Issuances (DONI) catalog as of our last index refresh (2026-08-23). Status is mirrored from that catalog, re-checked weekly — every change is logged. Note: its publication date is 2013-12-09 — 12.7 years old — so check for newer interim changes before citing it.

Branch	U.S. Navy
Series	SECNAVINST
Publication date	2013-12-09 (12.7 years ago)
Status	Current
Proponent / OPR	N2/N6
Source of record	DON Issuances (DONI)

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SECNAVINST 2200.6 — COMMUNICATIONS SECURITY MONITORING Current
SECNAVINST 2201.1 — DEPARTMENT OF THE NAVY COMMUNICATIONS SECURITY MATERIAL PROGRAM IMPLEMENTATION Current
SECNAVINST 2400.1B — ELECTROMAGNETIC SPECTRUM POLICY AND MANAGEMENT Rescinded / cancelled
SECNAVINST 2400.1C — ELECTROMAGNETIC SPECTRUM POLICY AND MANAGEMENT Current

This is an unofficial index built from the public catalog. The controlling copy is always the one on DON Issuances (DONI) — verify there before citing SECNAVINST 2251.1 in an official product.