Guides
Guides for customs brokers and importers
Short, practical answers to the paperwork questions that hold up US entries.
- Commercial invoice vs. packing list: 10 mismatches that hold up US entries
The differences between invoices, packing lists and bills of lading that cause CBP holds, exams and penalties, and how to catch them before you file.
- How to build a Manufacturer Identification Code (MID)
Step-by-step rules for the MID on CBP Form 7501, with the official examples, the words to skip, Canadian province codes and common mistakes.
- Section 301, Section 232 and AD/CVD: a checklist before you file
What to check on every US entry for China Section 301 duties, steel and aluminum Section 232 duties, and antidumping or countervailing duty orders.
Check the whole shipment, not one number
FreightProof reads the invoice, packing list and bill of lading together, validates every HTS number and container, builds the MIDs and flags what does not match — in about two minutes.