UNunnums
3328

UN 3328Radioactive material, Type B (U) package, fissile

Proper shipping name: Radioactive material, Type B(U) package, fissile

Class 7

Radioactive material

Summary

UN 3328 is the UN number for radioactive material, Type B (U) package, fissile. It is classed in Class 7 (radioactive material) for transport. Emergency responders use ERG guide 165.

Emergency response

The Emergency Response Guidebook (ERG2024) guide for this number:

  • Guide165Radioactive material, Type B(U) package, fissile

From the 2024 Emergency Response Guidebook (ERG2024), published by U.S. Department of Transportation, PHMSA. Read the full guide in the ERG or on CAMEO Chemicals.

Identification

UN number
UN 3328
Name
Radioactive material, Type B (U) package, fissile
Hazard class
Class 7: Radioactive material
What the class covers
Material containing radionuclides above set activity limits.

U.S. Hazardous Materials Table

The entry for this number in 49 CFR 172.101.

  • UN3328Radioactive material, Type B(U) package, fissile

    Special provisions: A56

    Class
    7
    Packing group
    None
    Labels
    7

From the eCFR edition of 49 CFR 172.101 dated 2026-10-05 (section last amended 2026-09-08). The eCFR is an editorial compilation, not the official legal edition. Read the current table.

About Class 7

Class 7 covers radioactive material, from medical isotopes to nuclear fuel. Packages are labelled by radiation level at the surface and the type of packaging used.

See all Class 7 UN numbers

Check the official sources

For emergency response, packaging and quantity limits, use these: