Contact
Tell us what is wrong — or what is missing.
FreightClassHub is a small, independent site. Corrections and specific feedback are the most useful messages we get.
Corrections
A number, source, or explanation is wrong. Include the page URL and, if you have it, the reference that supports the correction.
Calculator feedback
A field behaves unexpectedly, a unit conversion looks off, or a result is hard to read. Include the browser and the values you entered.
Source suggestions
You know of an NMFTA or carrier reference that would make a page more accurate. Primary sources are preferred.
What we cannot help with
We cannot classify a specific shipment from an email, quote a rate, book freight, or resolve a carrier dispute. For a shipment-specific classification, contact the carrier or the NMFTA. For a reclass dispute, start with the carrier’s published process and the dispute guide.