UN3549: Medical waste
As listed: Medical waste, category A, affecting humans, solid or Medical waste, category A, affecting animals only, solid
UN3549 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 6.2.
All §172.101 entries for UN3549
| Proper shipping name | Class | PG | Labels |
|---|---|---|---|
| Medical waste, category A, affecting humans, solid or Medical waste, category A, affecting animals only, solid | 6.2 | — | 6.2 |
Open any entry for packaging sections, special provisions, air limits and vessel stowage.
What it means
Label codes (column 6): 6.2 → Infectious substance 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 UN3549 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN3549
What is UN3549?
UN3549 is the identification number for Medical waste, category A, affecting humans Medical waste, category A, affecting animals in the DOT Hazardous Materials Table (49 CFR §172.101).
What hazard class is UN3549?
UN3549 is listed under hazard class 6.2 (infectious substance).
What packing group is UN3549?
Packing group for UN3549: not assigned. Where several rows exist, the packing group that fits your material decides which row applies.