Explosives 1.1 — mass explosion hazard

Placard images are simplified study illustrations, NOT official placards. Always follow 49 CFR Part 172 and use approved placards.

Hazard

Explosives with a mass explosion hazard (affects almost the entire load instantly).

Identification

Orange placard, division number and compatibility group letter at the bottom.

Driver study notes

Table 1 — placard for any quantity. Vehicle must be attended. No smoking within 25 feet.

Exam relevance

Know that 1.1, 1.2 and 1.3 are Table 1 materials.

Regulation version

49 CFR Part 172 Subpart F (verify current eCFR)