Classification Details
| NMFC | Description | Class |
|---|---|---|
| 45470.00 | Oxygen Generators, chemical, see Notes, items 45471 and 45472, in U.S. DOT-authorized packaging, subject to Item 170 and having a density in pounds per cubic foot of: |
Notes
Note 45471: NOTE-Applies on devices regulated by the U.S. Department of Transportation as a Hazard Class 5, Division 5.1, Chemical Oxygen Generator, UN3356, as defined in 49 CFR 173.127, offered in compliance with 49 CFR 173.168 and required to bear a notice to that effect on bills of lading and packaging.
How to Determine Your Class
To find the correct freight class for your shipment:
- Determine density to set class: weigh the shipment and calculate cubic feet from the outer pack dimensions, then divide weight by volume (e.g., 120 lb on 8 ft³ = 15 lb/ft³).
- Use U.S. DOT–authorized packaging only; ship unactivated devices, keep cartridges secured, and brace with non‑combustible dunnage away from heat or sparks.
- Document clearly on the BOL: NMFC 45470, hazmat declaration, 24/7 emergency contact, and the proper shipping name/UN number as applicable (commonly UN 3356, Oxygen generator, chemical).
- Book hazmat‑approved LTL carriers, request segregation from Class 3 flammables and combustibles, and note any overpack or special handling instructions.
Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.
Business Value
- Density-based classing improves price accuracy, reducing reweigh/reclass fees and tightening quote‑to‑invoice variance.
- DOT‑authorized packaging and clear hazmat docs cut carrier refusals, saving time and avoiding costly rollovers.
- Proper segregation and blocking reduce fire risk and claims exposure, protecting margins and service KPIs.
- Consistent compliance with Item 170 builds carrier confidence, expanding capacity options and stabilizing rates.