Is MCO 5271.1B current?

MCO 5271.1B is listed as current in the MCPEL catalog (publication date 2011-12-01).

Where do I download the official MCO 5271.1B?

The official copy is published on MCPEL (https://www.marines.mil/News/Publications/MCPEL/).

MCO 5271.1B — INFORMATION RESOURCES MANAGEMENT (IRM) STANDARDS AND GUIDELINES PROGRAM

MCO 5271.1B is listed as current Current
in the MCPEL catalog as of our last index refresh (2026-07-11). Note: its publication date is 2011-12-01 — 15 years old — so check for newer interim changes before citing it.

Branch	U.S. Marine Corps
Series	MCO
Publication date	2011-12-01 (14.6 years ago)
Status	Current
Proponent / OPR	Not listed
Source of record	MCPEL

Official document (MCPEL)

Watch this publication

Get an email if MCO 5271.1B is revised, superseded, or rescinded.

Nearby in the MCO series

MCO 5231.4 — MARINE CORPS DATA AND ARTIFICIAL INTELLIGENCE (AI) Current
MCO 5239.2B — MARINE CORPS CYBERSECURITY Current
MCO 5250.1 W/ADMIN CH-1 — HUMAN RESOURCE DEVELOPMENT PROCESS (HRDP) Current
MCO 5300.17A W/ADMIN CH-2 — MARINE CORPS SUBSTANCE ABUSE PROGRAM Current
MCO 5300.18 W/ADMIN CH-1 — MARINE CORPS SURVEY PROGRAM Current

This is an unofficial index built from the public catalog. The controlling copy is always the one on MCPEL — verify there before citing MCO 5271.1B in an official product.