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HTS heading 9031: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories there

Heading 9031 of the US Harmonized Tariff Schedule covers Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.

Official USITC HTS, 2026HTSRev22 · check on hts.usitc.gov

Heading 9031 at a glance

Goods named in this heading (official line texts): Machines for balancing mechanical parts, Test benches, For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecti…, Profile projectors, Coordinate-measuring machines, For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for …, Electron beam microscopes fitted with equipment specifically designed for the handling and tra…, Of .

Subheadings (6-digit)

All tariff lines in heading 9031

LineDescriptionGeneralSection 301 (China)Exclusions
9031.10.00Machines for balancing mechanical partsFreeList 1 +25%
9031.20.00Measuring or checking instruments, appliances and machines, not specified or inc…: Test benches1.7%List 1 +25%
9031.41.00For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecti…FreeList 1 +25%
9031.49.10Other: Profile projectorsFreeList 1 +25%
9031.49.40Coordinate-measuring machinesFreeList 1 +25%
9031.49.70For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for …FreeList 1 +25%
9031.49.90Other: OtherFreeList 1 +25%
9031.80.40Electron beam microscopes fitted with equipment specifically designed for the handling and tra…FreeList 1 +25%
9031.80.80Other instruments, appliances and machines: OtherFreeList 1 +25%
9031.90.21Parts and accessories: Of profile projectorsFreeList 1 +25%
9031.90.45Bases and frames for the coordinate-measuring machines of subheading 9031.49.40FreeList 3 +25%
9031.90.54Of optical instruments and appliances of subheading 9031.41 or 9031.49.70FreeList 1 +25%
9031.90.59Of other optical instruments and appliances, other than test benches: OtherFreeList 1 +25%
9031.90.70Of articles of subheading 9031.80.40FreeList 1 +25%
9031.90.91Other: OtherFreeList 1 +25%

All of chapter 90 · Chapter 90 rate summary · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.

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