Radioactive
Placard images are simplified study illustrations, NOT official placards. Always follow 49 CFR Part 172 and use approved placards.
- Hazard
- Radioactive materials.
- Identification
- Yellow top half, white bottom half.
- Driver study notes
- Placards are required for any quantity of packages bearing the RADIOACTIVE YELLOW-III label (Table 1).
- Exam relevance
- Radioactive Yellow III label → placard in any amount.
- Regulation version
- 49 CFR Part 172 Subpart F (verify current eCFR)
Source: PHMSA — 49 CFR Part 172 — Hazardous Materials Table, Communications and Placarding. Updated: 2026-10-09