If you need (e.g., how to write “NATO CONFIDENTIAL//ORCON//ATOMAL” on a slide or email footer), the official rule is always to follow APP-11 as amended. Your security manager should hold the latest approved version (current as of 2025: APP-11 Edition E or F, depending on national ratification).
When you finally open a legitimate , you will see a highly structured document (typically 80-120 pages). Here is the standard outline: nato app-11 pdf
The current primary edition, effective April 1, 2025 . This version includes 407 MTFs, incorporating 32 new messages and deprecating 40 legacy ones. If you need (e
"C" refers to Edition C, which was valid from 2012 to 2018. Edition D is the current NATO standard. Using Edition C could lead to confusion if your coalition partners use Edition D symbols. Here is the standard outline: The current primary
This article is for informational and educational purposes. Always refer to official NATO channels for the most current and authoritative NATO APP-11 PDF . The author does not host or distribute controlled documents.
The primary goal of APP-11 is to eliminate ambiguity in military communications.