NMFC 181700 - Iron/Steel Tanks (Expansion, Fuel) | Class N/A

Note 181701: NOTE-Also applies on tanks with permanently attached iron or steel skids.

Note 181702: NOTE-Also applies on tanks when wholly or partially coated or lined with lead.

To find the correct freight class for your shipment:

1. Confirm the exact tank type (expansion, fuel, hot-water storage, or hydropneumatic), then reference related items 181701 and 181702 to determine the precise freight class and description.
2. For fuel tanks, fully drain, purge, and dry. Cap or plug every port and vent, label “Clean and Dry,” and include documentation noting no residual fuel or fumes.
3. Protect fragile features: crate glass‑lined storage vessels, use saddles or cribbing to keep cylindrical shells from rolling, wrap gauges/threads, and mark orientation arrows on skids.
4. Share accurate dimensions, empty weight, and center‑of‑gravity with your carrier. Request liftgate, forklift pockets, or inside delivery as needed to avoid rehandling and damage.

Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.

• Right subitem selection under 181701/181702 prevents reclass fees and billing disputes, improving quote accuracy and budget control.
• Non-hazardous status broadens carrier options and shortens tender-to-pickup timelines, especially for jobsite or facility deliveries.
• Purpose-built packaging (saddles, crating, caps) reduces shell dents and port damage, cutting claim risk and installation delays.
• Clear specs and accessorial planning minimize detention, redelivery, and limited-access charges, lowering total landed cost.