Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Informational Only

This challenge is no longer accepting new submissions.

National Institute of Justice Body Armor Challenge: How Long Does Body Armor Really Last?

There is currently no known way to determine the amount and rate of change in performance of individual body armor vests over time without ballistic testing. NIJ challenges you to solve this problem!

Department of Justice

Total Cash Prizes Offered: $50,000
Type of Challenge: Scientific
Submission Start: 09/14/2012 07:00 PM ET
Submission End: 12/14/2012 10:00 PM ET

This challenge is externally hosted.

You can view the challenge details here: