Trade reference

HS code reference lookup

Enter a code (e.g. 8518 or 8518.30.20.00) or an English product name to see official schedule descriptions and the code hierarchy; when one description matches several candidate classifications they are all listed for you or your broker to weigh against product specifics.

Data: Harmonized Tariff Schedule of the United States (HTSUS) · Revision 22 (2026) · effective 10/30/2026 · USITC HTS · US public domain
中华人民共和国进出口税则(2026) · 税委会公告2025年第12号 · effective 2026-01-01 · official notice

A reference lookup is not a customs classification ruling. Duty rates shown are U.S. import rates only — they are not your destination country’s rates.

Digits (with or without dots) search by code prefix; words search English official descriptions. The dataset is English-only — Chinese terms get an explicit notice rather than a guess.

Chapter 90 — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof · Section XVIII

Entries: 570

Code Level Official description Unit US duty (MFN / pref. / col.2)
9027.90.68.00 US 10-digit Other kg Free / — / 50%
9027.90.84.00 US 10-digit Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 kg Free / — / 40%
9027.90.88.00 US 10-digit Other kg Free / — / 40%
9028 HS4 heading Gas, liquid or electricity supply or production meters, including calibrating meters thereof; parts and accessories thereof: —
9028.10.00.00 US 10-digit Gas meters No. 16¢ each + 2.5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / $4.50 each + 65%
9028.20.00.00 US 10-digit Liquid meters No. 16¢ each + 2.5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / $4.50 each + 65%
9028.30.00.00 US 10-digit Electricity meters No. Free / — / $4.50 each + 65%
9028.90.00 US 8-digit Parts and accessories Free / — / 65%
9028.90.00.40 US 10-digit Of electricity meters kg —
9028.90.00.80 US 10-digit Other kg —
9029 HS4 heading Revolution counters, production counters, taximeters, odometers, pedometers and the like; speedometers and tachometers, other than those of heading 9014 or 9015; stroboscopes; parts and accessories thereof: —
9029.10 HS6 subheading Revolution counters, production counters, taximeters, odometers, pedometers and the like: —
9029.10.40.00 US 10-digit Taximeters No. 5.3% / Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 85%
9029.10.80.00 US 10-digit Other No. Free / — / 35%
9029.20 HS6 subheading Speedometers and tachometers; stroboscopes: —
9029.20.20.00 US 10-digit Bicycle speedometers No. 6% / Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) / 110%
9029.20.40 US 8-digit Other speedometers and tachometers Free / — / 35%
9029.20.40.40 US 10-digit For use in civil aircraft No. —
9029.20.40.80 US 10-digit Other No. —
9029.20.60.00 US 10-digit Stroboscopes No. 16¢ each + 2.5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / $4.50 each + 65%
9029.90 HS6 subheading Parts and accessories: —
9029.90.20.00 US 10-digit Of taximeters kg 5.3% / Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 85%
9029.90.40.00 US 10-digit Of bicycle speedometers kg 6% / Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) / 110%
9029.90.60.00 US 10-digit Of stroboscopes kg 3.2% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 65%
9029.90.80 US 8-digit Other Free / — / 35%
9029.90.80.40 US 10-digit Of speedometers and tachometers kg —
9029.90.80.80 US 10-digit Other kg —
9030 HS4 heading Oscilloscopes, spectrum analyzers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of heading 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, X-ray, cosmic or other ionizing radiations; parts and accessories thereof:​ —
9030.10.00.00 US 10-digit Instruments and apparatus for measuring or detecting ionizing radiations No. Free / — / 40%
9030.20 HS6 subheading Oscilloscopes and oscillographs: —
9030.20.05.00 US 10-digit Specially designed for telecommunications No. Free / — / 40%
9030.20.10.00 US 10-digit Other oscilloscopes and oscillographs No. Free / — / 40%
9030.31.00.00 US 10-digit Multimeters, without a recording device No. Free / — / 40%
9030.32.00.00 US 10-digit Multimeters, with a recording device No. Free / — / 40%
9030.33 HS6 subheading Other, without a recording device: —
9030.33.34.00 US 10-digit Resistance measuring instruments No. 1.7% / Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40%
9030.33.38.00 US 10-digit Other No. Free / — / 40%
9030.39.01.00 US 10-digit Other, with a recording device No. Free / — / 40%
9030.40.00.00 US 10-digit Other instruments and apparatus, specially designed for telecommunications (for example, cross-talk meters, gain measuring instruments, distortion factor meters, psophometers) No. Free / — / 40%
9030.82.00.00 US 10-digit For measuring or checking semiconductor wafers or devices (including integrated circuits) No. Free / — / 40%
9030.84.00.00 US 10-digit Other, with a recording device No. Free / — / 40%
9030.89.01.00 US 10-digit Other No. Free / — / 40%
9030.90 HS6 subheading Parts and accessories: —
9030.90.25.00 US 10-digit Printed circuit assemblies No. Free / — / 40%
9030.90.46.00 US 10-digit Other kg, No. Free / — / 40%
9030.90.66.00 US 10-digit Of instruments and apparatus of subheading 9030.40 or 9030.82 No. Free / — / 40%
9030.90.68.00 US 10-digit Other No. Free / — / 40%
9030.90.84.00 US 10-digit Of instruments and apparatus of subheading 9030.82 kg Free / — / 40%
9030.90.89 US 8-digit Other Free / — / 40%
9030.90.89.11 US 10-digit Of articles of subheading 9030.20 kg —
9030.90.89.21 US 10-digit Of articles of subheading 9030.31 kg —
9030.90.89.22 US 10-digit Of articles of subheading 9030.32 kg —
9030.90.89.23 US 10-digit Of articles of subheading 9030.33 kg —
9030.90.89.31 US 10-digit Of articles of subheading 9030.39 kg —
9030.90.89.40 US 10-digit Of articles of subheading 9030.40 kg —
9030.90.89.56 US 10-digit Of articles of subheading 9030.84 kg —
9030.90.89.61 US 10-digit Other kg —
9031 HS4 heading Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: —
9031.10.00.00 US 10-digit Machines for balancing mechanical parts No. Free / — / 40%
9031.20.00.00 US 10-digit Test benches No. 1.7% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
9031.41.00 US 8-digit For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits) Free / — / 50%
9031.41.00.20 US 10-digit For inspecting photomasks or reticles used in manufacturing semiconductor devices No. —
9031.41.00.40 US 10-digit For wafers No. —
9031.41.00.60 US 10-digit Other No. —
9031.49 HS6 subheading Other: —
9031.49.10.00 US 10-digit Profile projectors No. Free / — / 45%
9031.49.40.00 US 10-digit Coordinate-measuring machines No. Free / — / 50%
9031.49.70.00 US 10-digit For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for measuring surface particulate contamination on semiconductor devices No. Free / — / 50%
9031.49.90.00 US 10-digit Other No. Free / — / 50%
9031.80 HS6 subheading Other instruments, appliances and machines: —
9031.80.40.00 US 10-digit Electron beam microscopes fitted with equipment specifically designed for the handling and transport of semiconductor wafers or reticles No. Free / — / 40%
9031.80.80 US 8-digit Other Free / — / 40% *
9031.80.80.60 US 10-digit For testing electrical characteristics kg —
9031.80.80.70 US 10-digit Other kg —
9031.80.80.85 US 10-digit Other kg —
9031.90 HS6 subheading Parts and accessories: —
9031.90.21.00 US 10-digit Of profile projectors kg Free / — / 45%
9031.90.45.00 US 10-digit Bases and frames for the coordinate-measuring machines of subheading 9031.49.40 kg Free / — / 50%
9031.90.54.00 US 10-digit Of optical instruments and appliances of subheading 9031.41 or 9031.49.70 kg Free / — / 50%
9031.90.59.00 US 10-digit Other kg Free / — / 50%
9031.90.70.00 US 10-digit Of articles of subheading 9031.80.40 kg Free / — / 40%
9031.90.91 US 8-digit Other Free / — / 40% *
9031.90.91.30 US 10-digit Of machines for balancing mechanical parts kg —
9031.90.91.60 US 10-digit Of test benches kg —
9031.90.91.95 US 10-digit Other kg —
9032 HS4 heading Automatic regulating or controlling instruments and apparatus; parts and accessories thereof: —
9032.10.00 US 8-digit Thermostats 1.7% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) / 40%
9032.10.00.30 US 10-digit Designed for wall mounting No. —
9032.10.00.60 US 10-digit Other No. —
9032.10.00.90 US 10-digit Other No. —
9032.20.00.00 US 10-digit Manostats No. Free / — / 35%
9032.81.00 US 8-digit Hydraulic and pneumatic Free / — / 35%
9032.81.00.20 US 10-digit Hydraulic No. —
9032.81.00.60 US 10-digit Pneumatic No. —
9032.81.00.80 US 10-digit Other No. —
9032.89 HS6 subheading Other: —
9032.89.20.00 US 10-digit Designed for use in a 6, 12 or 24 V system No. 1.1% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 25%
9032.89.40.00 US 10-digit Other No. 1.7% / Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 35%
9032.89.60 US 8-digit Other 1.7% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40%
9032.89.60.15 US 10-digit Complete systems No. —
9032.89.60.25 US 10-digit Other No. —
9032.89.60.30 US 10-digit Complete systems No. —
9032.89.60.40 US 10-digit Temperature control instruments No. —
9032.89.60.50 US 10-digit Pressure and draft control instruments No. —
9032.89.60.60 US 10-digit Flow and liquid level control instruments No. —
9032.89.60.70 US 10-digit Humidity control instruments No. —
9032.89.60.75 US 10-digit Other kg —
9032.89.60.85 US 10-digit Other kg —
9032.90 HS6 subheading Parts and accessories: —
9032.90.21.00 US 10-digit Designed for use in a 6, 12 or 24 V system kg 1.1% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 25%
9032.90.41.00 US 10-digit Other kg 1.7% / Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 35%
9032.90.61 US 8-digit Other 1.7% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40%
9032.90.61.20 US 10-digit Of thermostats kg —
9032.90.61.40 US 10-digit Of manostats kg —
9032.90.61.60 US 10-digit Of instruments and apparatus of subheading 9032.81 kg —
9032.90.61.80 US 10-digit Other kg —
9033.00 HS6 subheading Parts and accessories (not specified or included elsewhere in this chapter) for machines, appliances, instruments or apparatus of chapter 90: —
9033.00.20.00 US 10-digit Light-emitting diode (LED) backlights modules, the foregoing which are lighting sources that consist of one or more LEDs and one or more connectors and are mounted on a printed circuit or other similar substrate, and other passive components, whether or not combined with optical components or protective diodes, and used as backlights illumination for liquid crystal displays (LCDs) No. Free / — / 40%
9033.00.30.00 US 10-digit Touch-sensitive data input devices (so-called “touch screens”) without display capabilities, for incorporation into apparatus having a display, which function by detecting the presence and location of a touch within the display area (such sensing may be obtained by means of resistance, electrostatic capacity, acoustic pulse recognition, infrared lights or other touch-sensitive technology) No. Free / — / 40%
9033.00.90.00 US 10-digit Other kg 4.4% / Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40%

Browse by chapter

Chapters 01–97 of the Harmonized System (US chapters 98/99 are national legislation and not included).

Section I — Live Animals; Animal Products
Section II — Vegetable Products
Section III — Animal, Vegetable Or Microbial Fats And Oils And Their Cleavage Products; Prepared Edible Fats; Animal Or Vegetable Waxes
Section IV — Prepared Foodstuffs; Beverages, Spirits And Vinegar; Tobacco And Manufactured Tobacco Substitutes; Products, Whether Or Not Containing Nicotine, Intended For Inhalation Without Combustion; Other Nicotine Containing Products Intended For The Intake Of Nicotine Into The Human Body
Section V — Mineral Products
Section VI — Products Of The Chemical Or Allied Industries
Section VII — Plastics And Articles Thereof; Rubber And Articles Thereof
Section VIII — Raw Hides And Skins, Leather, Furskins And Articles Thereof; Saddlery And Harness; Travel Goods, Handbags And Similar Containers; Articles Of Animal Gut (Other Than Silkworm Gut)
Section IX — Wood And Articles Of Wood; Wood Charcoal; Cork And Articles Of Cork; Manufactures Of Straw, Of Esparto Or Of Other Plaiting Materials; Basketware And Wickerwork
Section X — Pulp Of Wood Or Of Other Fibrous Cellulosic Material; Recovered (Waste And Scrap) Paper Or Paperboard; Paper And Paperboard And Articles Thereof
Section XI — Textiles And Textile Articles
Section XII — Footwear, Headgear, Umbrellas, Sun Umbrellas, Walking-Sticks, Seat-Sticks, Whips, Riding-Crops And Parts Thereof; Prepared Feathers And Articles Made Therewith; Artificial Flowers; Articles Of Human Hair
Section XIII — Articles Of Stone, Plaster, Cement, Asbestos, Mica Or Similar Materials; Ceramic Products; Glass And Glassware
Section XIV — Natural Or Cultured Pearls, Precious Or Semiprecious Stones, Precious Metals, Metals Clad With Precious Metal, And Articles Thereof; Imitation Jewelry; Coin
Section XV — Base Metals And Articles Of Base Metal
Section XVI — Machinery And Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders And Reproducers, Television Image And Sound Recorders And Reproducers, And Parts And Accessories Of Such Articles
Section XVII — Vehicles, Aircraft, Vessels And Associated Transport Equipment
Section XVIII — Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical Or Surgical Instruments And Apparatus; Clocks And Watches; Musical Instruments; Parts And Accessories Thereof
Section XIX — Arms And Ammunition; Parts And Accessories Thereof
Section XX — Miscellaneous Manufactured Articles
Section XXI — Works Of Art, Collectors' Pieces And Antiques

What this data covers — and what it does not

  • International layer: HS chapters 01–97 with 4-digit headings and 6-digit subheadings (HS 2022 edition) — the part shared by every member country’s tariff schedule.
  • US layer: 8-digit rate lines and 10-digit statistical suffixes of the US HTS, clearly badged; the duty columns are US import rates for reference only.
  • China layer: PRC 2026 tariff schedule 8-digit lines with official Chinese names and MFN/ordinary rates, matched to international rows by shared HS6 prefix; provisional (△), agreement, quota, VAT/consumption and 10-digit customs numbers are not in scope.
  • Not included: the EU’s 8-digit CN codes, other countries’ national extensions, WCO Explanatory Notes, and US chapters 98/99 (national legislation).
  • Descriptions are English-only. Classification of a real product needs the General Rules of Interpretation plus material, composition, use and processing details — treat every result as a candidate, not a ruling.

Official verification

For declarations, pre-classification or current rates, use an official channel:

Frequently asked

Can I declare with the code I find here?

No — this is a reference lookup. Candidate codes, official descriptions and hierarchy are informational, not a customs classification ruling. Formal classification applies the General Rules of Interpretation to material, composition, use and processing; ask your customs authority for a binding ruling when needed.

Why does one product name return several codes?

That's normal. The same description appears at different levels (heading/subheading/statistical suffix) and under different chapters — cotton, for example, lives in the yarn, fabric and apparel chapters alike. The tool lists every candidate instead of guessing one answer for you.

Whose 8- and 10-digit codes are these?

The international Harmonized System only standardizes the first six digits (2-digit chapter + 4-digit heading + 6-digit subheading). The 8/10-digit codes here are US HTS national extensions and are labelled as such; China uses an 8-digit tariff schedule and the EU an 8-digit CN code — neither is in this dataset.

Are the duty rates shown what I'd pay importing to my country?

No. The rate columns are US import duty (General MFN / Special preferential / Column 2) — they apply to imports into the United States and are shown for reference only. Check the official tariff service of your destination country for actual rates.

How does Chinese search work?

Chinese terms are matched verbatim against the official Chinese product names in the PRC 2026 tariff schedule — no machine translation, no guessed codes. Colloquial names may miss; try a more formal name or English.

How fresh is the data?

The snapshot is the USITC's 2026 HTS Revision 22 (effective 2026-10-30); the page always shows the release and its effective date and warns when the snapshot grows stale. Use the official live service for filings.

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