UN3476: Fuel cell cartridges
As listed: Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment, containing water-reactive substances
UN3476 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 4.3.
All §172.101 entries for UN3476
| Proper shipping name | Class | PG | Labels |
|---|---|---|---|
| Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment, containing water-reactive substances | 4.3 | — | 4.3 |
Open any entry for packaging sections, special provisions, air limits and vessel stowage.
What it means
Label codes (column 6): 4.3 → Dangerous when wet label.
UN numbers are recognized for international and domestic transport.
Example basic description
Proper shipping name shown without the table's italic descriptive text. Order per §172.202: ID number, proper shipping name, hazard class, packing group. Example only — add technical names, “RQ”, quantities and other elements your shipment requires.
What to check next
- Match the name. Compare your SDS Section 14 to the proper shipping names above and pick the row with your packing group.
- Read the special provisions on the entry page (§172.102) — they can add limits or exceptions.
- Check packaging — the entry page lists the Part 173 sections for exceptions, non-bulk and bulk.
- Labels & placards. Placarding depends on class and quantity — see Table 1 vs Table 2.
- Emergency response. Find the response guide for UN3476 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN3476
What is UN3476?
UN3476 is the identification number for Fuel cell cartridges or Fuel cell cartridges contained in equipment or Fuel cell cartridges packed with equipment in the DOT Hazardous Materials Table (49 CFR §172.101).
What hazard class is UN3476?
UN3476 is listed under hazard class 4.3 (dangerous when wet).
What packing group is UN3476?
Packing group for UN3476: not assigned. Where several rows exist, the packing group that fits your material decides which row applies.