Hazmat UN Number Lookup
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🏷️ Primary Hazard Class Filter
UN2909
Radioactive material, excepted package-articles manufactured from natural uranium or depleted uranium or natural thorium
Radioactive Materials
Class 7 (Primary)Class None (Subsidiary)
CAS Registry7440-61-1 / 7440-29-1 (Uranium/Thorium)
Hazchem / EAC2TY
ERG Guide Number174
49 CFR Placards & Labels
Not listed as a Reportable Quantity (RQ) hazardous substance under §172.101 Appendix A.
Not listed as a Marine Pollutant under §172.101 Appendix B.
Regulatory Facts
Packing Group
—
Symbols (col 1)
—
Labels (col 6)
None
PIH Zone
—
Packaging references (49 CFR §173.xxx)
Exceptions (col 8A)
§173.422, 426
Non-Bulk (col 8B)
§173.422, 426
Bulk (col 8C)
§173.422, 426
Aircraft quantity limits (col 9)
Passenger / Rail (9A)
—
Cargo Aircraft Only (9B)
—
Vessel stowage (col 10)
Location (10A)
A
Other codes (10B)
—
Special provisions (col 7 — §172.102)
—Hazard Classification & Risks
Class 7 — Radioactive material. Activity concentration and total activity exceed the §173.403 limits (49 CFR §173.401).
Transport Regulations
Hazard class 7. Placard/label codes: None. Packaging (49 CFR §173): exceptions §422, 426, non-bulk §422, 426, bulk §422, 426. Vessel stowage: A. Classified per 49 CFR §172.101.
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Source & sourcing note
Regulatory data mirrors the U.S. 49 CFR §172.101 Hazardous Materials Table and companion columns (packaging, quantity limits, vessel stowage, special provisions) as published by the U.S. Pipeline and Hazardous Materials Safety Administration (PHMSA).
Emergency-response content is drawn from the 2024 Emergency Response Guidebook (ERG), a joint publication of PHMSA, Transport Canada, and Mexico’s SCT.
The U.S. edition of the ERG and all U.S. federal regulations are public-domain works under 17 U.S.C. §105. Descriptions on this page are plain-English paraphrases; for any compliance decision, consult the authoritative text on eCFR Title 49 and the ERG at PHMSA.dot.gov. “ERG™” is attributed to PHMSA / Transport Canada / SCT and used nominatively.