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NA identification number

NA9035: Gas identification set

NA9035 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 2.3.

ID numberNA9035
Hazard class2.3
Packing groupnot assigned
Label codes2.3

All §172.101 entries for NA9035

Proper shipping nameClassPGLabels
Gas identification set2.3—2.3

Open any entry for packaging sections, special provisions, air limits and vessel stowage.

What it means

2.3
Class 2.3 — Poisonous (toxic) gas. Gases known to be toxic to humans when inhaled.

Label codes (column 6): 2.3 → Poison gas label.

NA numbers are North-America-only identification numbers — not recognized for international transport except to and from Canada.

Example basic description

NA9035, Gas identification set, 2.3

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

  1. Match the name. Compare your SDS Section 14 to the proper shipping names above and pick the row with your packing group.
  2. Read the special provisions on the entry page (§172.102) — they can add limits or exceptions.
  3. Check packaging — the entry page lists the Part 173 sections for exceptions, non-bulk and bulk.
  4. Labels & placards. Placarding depends on class and quantity — see Table 1 vs Table 2.
  5. Emergency response. Find the response guide for NA9035 in the current PHMSA Emergency Response Guidebook.
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Common questions about NA9035

What is NA9035?

NA9035 is the identification number for Gas identification set in the DOT Hazardous Materials Table (49 CFR §172.101).

What hazard class is NA9035?

NA9035 is listed under hazard class 2.3 (poisonous (toxic) gas).

What packing group is NA9035?

Packing group for NA9035: not assigned. Where several rows exist, the packing group that fits your material decides which row applies.

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Source: Hazardous Materials Table (49 CFR §172.101), eCFR.gov — current as of Oct 23, 2026. View the official table. Reference only — verify current requirements before shipping.