Marking Tips for Classified Documents

An official website of the United States government

Here's how you know

Official websites use .mil

A .mil website belongs to an official U.S. Department of Defense organization in the United States.

Secure .mil websites use HTTPS

A lock () or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Under Construction

Step 1 - Portion Marking

Step 2 - Overall Classification (Banner Line)

Step 3 - Classification Authority Block