NMFC Codes Search: Find and Verify Your Freight Item
Search ClassIT+ for the NMFC item that matches your goods, check its conditions and applicable date, then carry the verified item and any applicable subitem into your carrier's shipping record.
Use official ClassIT+This NMFC codes search guide is for finding and verifying an item. For packed volume and density arithmetic, use the existing freight class calculator. A density estimate does not identify the goods.
Use the official lookup, then check the match
ClassIT+ is NMFTA's official online NMFC lookup. Its published features include predictive search, effective-date filtering and historical-date lookup. Start with a description of the actual goods or an item already present in your records, then inspect the matching entry rather than treating the first search suggestion as approval. [N1]
Check the commodity description, material, shipping form, packaging and any applicable notes or subitems against the freight you will tender. This is an editorial verification checklist, not a reproduction of a particular NMFC item's requirements. NMFTA explains that the correct item remains important because handling, stowability and liability concerns can prevent an item from being classified by density alone. [N3]
If the match remains unresolved, use NMFTA's classification-assistance route or ask the carrier or broker for the provision used on your shipment. NMFTA publishes a classification-assistance option for submitting commodity details for an expert opinion. This page has not accessed a subscription account or assigned an NMFC number to your goods. [N2]
Cross-check a code search against the carrier evidence
The useful result of a code search is a supported match between the goods and a provision, not simply a number that resembles something on an old invoice. Our carrier comparison provides a separate test: can the density evidence explain the quantity used in a rating calculation without pretending to identify the commodity? Keep those questions in separate columns even when the same shipment reference appears on both records.
In our fixed hypothetical example, the goods are new boxed non-hazardous steel machine components on a pallet, packed at 48 × 40 × 48 inches and weighing 635 pounds gross. The BOL prohibits top loading. The cited R+L height trigger is not met by this actual height, whereas the cited Saia and Magnum density-rate paths substitute at least 96 inches. The corresponding derived densities are 635 ÷ (48 × 40 × 48 ÷ 1728) = 11.906250 lb/ft³ and 635 ÷ (48 × 40 × 96 ÷ 1728) = 5.953125 lb/ft³. This height instruction changes the denominator in those cited paths; it supplies no missing NMFC commodity item. These are hypothetical calculations, not carrier classifications. The source-dated carrier comparison identifies the retrieved editions and their limits.
| Evidence lane | What the comparison establishes | What the code-search record still needs |
|---|---|---|
| R+L | The cited density method has a height trigger; the separate exempt-commodity table has its own scope. | Record the commodity match and whether the proposed exempt treatment actually applies. A measured density does not establish exempt status. |
| Saia | The retrieved density-rate method and the mixed-commodity averaging provision answer different scope questions. | Keep the single-commodity lookup separate from any proposed mixed-item averaging treatment. Name the provision behind each result. |
| Magnum | The cited tariff separates its density-rate method from the NMFC reference for classification dimensions. | Label which dimensional basis is used in each record. Do not silently replace measured dimensions in a classification worksheet with an unexplained rating height. |
| FedEx | The public cube tool rounds volume; it does not output a commodity item. | Retain the cube result as arithmetic evidence. Obtain the goods-to-item match independently instead of recording a tool result as a code. |
Each carrier statement above is limited to the retrieved source identified in our source manifest. It is not confirmation that an edition governs your contract or that the carrier accepted a classification. Read the underlying official provision before using a row for a live shipment.
A worked unresolved search record
For the hypothetical machine-components shipment, write the goods description and packing state exactly as defined above. Leave the item, subitem and confirmed class as not located: no current commodity match was retrieved for that example. Preserve the measured dimensions, gross weight and the separately derived density records beside that status. The missing item must not be filled from a density band's class number.
Suppose the carrier later explains the denominator but provides no commodity provision. Update the density-basis field and keep the code match unresolved. If a commodity provision arrives but the measurement record remains disputed, update the classification-evidence field and keep the measurement question open. These are proposed recordkeeping states, not carrier-mandated procedures. They prevent progress on one question from being mistaken for resolution of the other.
Only carry a result into the shipping record when the applicable item and conditions have been checked for those goods and the relevant date. Retain the source reference and who reviewed it. A code copied without its supporting description cannot demonstrate why it fits the shipment; a valid arithmetic result cannot repair that missing explanation. This workflow is newly authored analysis combining NMFTA's lookup guidance with our independently prepared carrier-rule comparison.
Sources and scope
- Official ClassIT+ features — retrieved 2026-11-03.
- NMFTA classification guidance — retrieved 2026-11-03.
- NMFTA classification FAQs — retrieved 2026-11-03.
Carrier sources were retrieved for the linked comparison on 2026-11-03; its source manifest records editions and locations. This is an independent lookup guide, not a full NMFC database or a live classification service. Newly authored cross-analysis does not establish global exclusivity.