THMG520 – DOT Class Dangerous

The HazMat Guys: Archives

THMG520 – DOT Class Dangerous

October 31, 2025

During our recording of DOT class 9, we realized we missed talking about the dangerous placard. So, we bumped a few episodes and made sure to cover all the details about DOT class dangerous in this one. Tune in for the full scoop!

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Fire Suppression Solutions, based out of Slinger, Wisconsin is the U.S. master distributer for multiple game-changing solutions that help protect communities, businesses, and individuals. Their partnership with LifeSafe Technologies has delivered TRF (Thermal Runaway Fluid), a product that has proved to extinguish Lithium-ion battery fires. Yes, it's a bold claim, but they have the testing to back it up. To learn more about this and their other lifesaving products, visit Fire Suppression Solutions. UL for class A and B fires, BSI for 10 categories including lithium-ion batteries

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Episode Overview

In this episode, the hosts delve deep into the elusive and often misunderstood "Dangerous" placard used in hazardous materials transportation. They unpack the regulatory requirements, real-world implications for first responders, and the complexities of interpreting mixed loads. With a blend of technical insight and humor, they explore how the presence of a Dangerous placard can signal serious unknown threats and how responders should approach such incidents with heightened caution.

Segment Breakdown with Timestamps

Intro & Placard Nine Recap (00:00 - 04:13)