r/hazmat • u/TheBackwars • Jun 05 '25

General Discussion What is this truck carrying?

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It doesn’t appear to have a license plate either 🤔

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u/mobius153 Jun 05 '25

If you're real curious, the Emergency Response Guidebook is available for free as an app or pdf and contains info on all of the UN numbers. More often than not when we're driving somewhere I ask my wife to pull it up and look up a UN number.

1

u/TheBackwars Jun 05 '25

What’s the wildest one you’ve seen?

4

u/mobius153 Jun 05 '25

Class 1 (explosives), 4 (flammable solids), and 8 (corrosive) transported together. I forget what they were specifically but regs prohibit them being transported in the same vehicle. I called it in to highway patrol.

1

u/Shad3m3d1c Jun 06 '25

1.4s, 4.1s and 8s CAN be transported together. The 4.1s and 8s just have to be segregated.

However, if it's anything other than those 3 SPECIFIC hazard classes, then no. They can not be transported together. 4.2s and 4.3s can't be with corrosives and 1.1-3 and 1.5 can't be transported with anything else.