HTS 9031: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof
Heading 9031 of the Harmonized Tariff Schedule of the United States has 21 ten-digit statistical numbers. A US entry line in ACE needs the full ten digits, with the quantity in No. or kg.
Check additional duties before you file
- If the goods are made in China, check Section 301 duties under HTSUS heading 9903.88, on top of the general rate, and any exclusions.
| HTSUS number | Description | Unit | General rate |
|---|---|---|---|
| 9031.10.00.00 | Machines for balancing mechanical parts | No. | Free |
| 9031.20.00.00 | Test benches | No. | 1.7% |
| Other optical instruments and appliances: | |||
| 9031.41.00 | For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits) | Free | |
| 9031.41.00.20 | For inspecting photomasks or reticles used in manufacturing semiconductor devices | No. | |
| For inspecting semiconductor wafers or devices: | |||
| 9031.41.00.40 | For wafers | No. | |
| 9031.41.00.60 | Other | No. | |
| 9031.49 | Other: | ||
| 9031.49.10.00 | Profile projectors | No. | Free |
| 9031.49.40.00 | Coordinate-measuring machines | No. | Free |
| 9031.49.70.00 | For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for measuring surface particulate contamination on semiconductor devices | No. | Free |
| 9031.49.90.00 | Other | No. | Free |
| 9031.80 | Other instruments, appliances and machines: | ||
| 9031.80.40.00 | Electron beam microscopes fitted with equipment specifically designed for the handling and transport of semiconductor wafers or reticles | No. | Free |
| 9031.80.80 | Other | Free | |
| Equipment for testing the characteristics of internal combustion engines: | |||
| 9031.80.80.60 | For testing electrical characteristics | kg | |
| 9031.80.80.70 | Other | kg | |
| 9031.80.80.85 | Other | kg | |
| 9031.90 | Parts and accessories: | ||
| 9031.90.21.00 | Of profile projectors | kg | Free |
| Of other optical instruments and appliances, other than test benches: | |||
| 9031.90.45.00 | Bases and frames for the coordinate-measuring machines of subheading 9031.49.40 | kg | Free |
| 9031.90.54.00 | Of optical instruments and appliances of subheading 9031.41 or 9031.49.70 | kg | Free |
| 9031.90.59.00 | Other | kg | Free |
| Other: | |||
| 9031.90.70.00 | Of articles of subheading 9031.80.40 | kg | Free |
| 9031.90.91 | Other | Free | |
| 9031.90.91.30 | Of machines for balancing mechanical parts | kg | |
| 9031.90.91.60 | Of test benches | kg | |
| 9031.90.91.95 | Other | kg |
Common paperwork mistakes with heading 9031
- The invoice shows the exporter's own code. Only the first six digits are shared worldwide; the US number has ten. Check every line against the list above.
- The quantity is in the wrong unit. These lines report quantity in No. or kg, which may not match the invoice's cartons, sets or pieces.
- The packing list and the bill of lading disagree on cartons or gross weight, which can lead to holds and exams.
- The manufacturer's name and address are missing, so the MID cannot be built from the documents.
Look up any ten-digit number, or read the guide to invoice and packing list mismatches.
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.
Data: Harmonized Tariff Schedule of the United States, US International Trade Commission. Rates are for information only.