PETN.US is a free resource hub for combat engineers and 12-series soldiers. We do not sell your data, require accounts, or collect personal information. This policy explains what limited data is collected and how it is used.
We do not collect any personally identifiable information directly. We do not have user accounts, login systems, contact forms, or purchase flows.
Anonymous usage data is collected automatically through Google Analytics (GA4) when you visit the site or use the app. This includes:
This data is aggregated and anonymous — it cannot be used to identify you.
Google Analytics sets cookies to distinguish unique visits and measure traffic patterns. These are analytics-only cookies. We do not use advertising cookies, tracking pixels, or session cookies for any other purpose.
You can opt out of Google Analytics tracking at any time using the Google Analytics Opt-out Browser Add-on.
The site and app may interact with the following third-party services, each governed by their own privacy policies:
We do not control and are not responsible for the privacy practices of these third parties.
The PETN Labs Android app is designed for offline use. It does not require an account, does not collect personal data, and does not transmit information to external servers during normal operation. Anonymous analytics may be collected through Google Play Services in accordance with Google's policies.
All field manuals and reference content within the app are unclassified documents sourced from official U.S. Army publications and are used for educational and training reference purposes only.
All manuals, documents, and references on this site are unclassified and publicly available via the Army Publishing Directorate (APD). Nothing FOUO or above is hosted here. PETN.US is not affiliated with the U.S. Army or Department of Defense.
This site and app are not directed at children under 13. We do not knowingly collect any information from children.
We may update this policy as the site or app evolves. The "Last updated" date at the top of this page will reflect any changes. Continued use of the site or app after changes constitutes acceptance of the updated policy.