Is OPNAVINST 1540.51F current?

OPNAVINST 1540.51F is listed as current in the DON Issuances (DONI) catalog (publication date 2025-03-23).

Where do I download the official OPNAVINST 1540.51F?

The official copy is published on DON Issuances (DONI) (https://www.secnav.navy.mil/doni/).

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OPNAVINST 1540.51F — SUBMARINE ON BOARD TRAINING PROGRAM

OPNAVINST 1540.51F is listed as current Current
in the DON Issuances (DONI) catalog as of our last index refresh (2026-07-11).

Branch	U.S. Navy
Series	OPNAVINST
Publication date	2025-03-23 (1.3 years ago)
Status	Current
Proponent / OPR	N97
Source of record	DON Issuances (DONI)

Official document (DON Issuances (DONI))

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Nearby in the OPNAVINST series

OPNAVINST 1531.6E — NOMINATION AND ADMISSION OF CITIZENS OF FOREIGN COUNTRIES TO THE UNITED STATES NAVAL ACADEMY Current
OPNAVINST 1534.1F — STRATEGIC SEALIFT OFFICER FORCE Current
OPNAVINST 1540.2G — NAVAL AVIATION TECHNICAL TRAINING PROGRAM ADMINISTRATION AND OPERATION Current
OPNAVINST 1540.56B — NAVY CREDENTIALING PROGRAM Rescinded / cancelled
OPNAVINST 1540.56C — NAVY CREDENTIALING PROGRAMS 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 OPNAVINST 1540.51F in an official product.