HazMat study center
Hazard classes, divisions, placard tables and driver duties for the H and X endorsements.
Placard images are simplified study illustrations, NOT official placards. Always follow 49 CFR Part 172 and use approved placards.
Placard library
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Class 1.1Explosives 1.1 — mass explosion hazard
Class 1.2Explosives 1.2 — projection hazard
Class 1.3Explosives 1.3 — fire hazard
Class 1.4Explosives 1.4 — minor explosion hazard
Class 1.5Explosives 1.5 — very insensitive
Class 1.6Explosives 1.6 — extremely insensitive
Class 2.1Flammable gas
Class 2.2Non-flammable gas
Class 2.3Poison gas