Spontaneously combustible

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

Hazard

Materials that can ignite on their own when exposed to air.

Identification

White top half, red bottom half.

Driver study notes

Table 2 — placard when the aggregate gross weight of all Table 2 materials is 1,001 lb or more (exceptions apply).

Regulation version

49 CFR Part 172 Subpart F (verify current eCFR)