HTS heading 9026 · Chapter 90, Optical, photographic, measuring and medical instruments
US imports of Instruments and apparatus for measuring or checking the flow
Instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases (for example, flow meters, level gauges, manometers, heat meters), excluding instruments and apparatus of heading 9014, 9015, 9028 or 9032; parts and accessories thereof
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
US imports under HTS 9026 at a glance
Between March and July 2026, US importers entered $1.78 billion of instruments and apparatus for measuring or checking the flow under HTS heading 9026, from 49 of the 55 origin countries covered here and across 12 ten-digit tariff lines — roughly $356 million a month of customs value under a single four-digit heading.
Heading 9026 sits in chapter 90, optical, photographic, measuring and medical instruments, so anything classified here shares a duty structure with the rest of that chapter.
Top origin countries by share of HTS 9026
Origin countries: value, share and duty paid
| Origin | Import value | Share | Dutiable share | Effective duty | Duty per $100 | Detail |
|---|---|---|---|---|---|---|
| Mexico | $457 million | 25.7% | 15.8% | 10.26% | $1.62 | |
| Germany | $246 million | 13.8% | 93.2% | 10.05% | $9.37 | Duty on 9026.20.40 |
| China | $159 million | 8.9% | 99.6% | 27.34% | $27.22 | Duty on 9026.20.40 China lane |
| Japan | $155 million | 8.7% | 90.6% | 10.27% | $9.31 | Duty on 9026.20.40 |
| United Kingdom | $124 million | 7% | 68.2% | 9.98% | $6.80 | Duty on 9026.20.40 |
| Canada | $111 million | 6.3% | 9.3% | 11.36% | $1.06 | |
| Switzerland | $79.1 million | 4.4% | 93.3% | 10.12% | $9.44 | Duty on 9026.10.20 |
| France | $71.1 million | 4% | 67.5% | 9.94% | $6.71 | Duty on 9026.20.40 |
| Taiwan | $62.4 million | 3.5% | 96.8% | 10.18% | $9.86 | Duty on 9026.20.80 |
| Malaysia | $52.2 million | 2.9% | 94% | 10.03% | $9.43 | Duty on 9026.20.40 |
| India | $28.6 million | 1.6% | 96.4% | 10.03% | $9.67 | Duty on 9026.90.40 India lane |
| Thailand | $28.4 million | 1.6% | 98.8% | 10.11% | $9.99 | Duty on 9026.20.40 Thailand lane |
| Italy | $25.7 million | 1.4% | 92.9% | 10.02% | $9.31 | Duty on 9026.20.40 Italy lane |
| Netherlands | $24.9 million | 1.4% | 98.2% | 9.99% | $9.82 | Duty on 9026.10.20 |
| Vietnam | $21.2 million | 1.2% | 79.4% | 10.05% | $7.99 | Duty on 9026.20.40 Vietnam lane |
Who exports instruments and apparatus for measuring or checking the flow to the United States
Mexico is the largest origin with $457 million, or 25.7% of the heading, with Germany at 13.8% and China at 8.9%. The top three take 48.4% between them — enough concentration to matter when one origin's duty treatment changes, but not so much that a buyer has no alternative to qualify.
Mexico and Canada sit near the top of the table, and the duty numbers reflect it: Mexico entered 84.2% of its value free of duty and Canada entered 90.7% of its value free of duty. Cargo that qualifies under USMCA and is claimed correctly at entry pays nothing; cargo that does not qualify, or that is never claimed, pays the ordinary rate. The certification is the whole difference.
What importers actually paid in duty
Duty treatment is split. 66% of the entered value was dutiable and the rest came in free, usually under a trade agreement or a duty-free provision in the tariff schedule. CBP collected $146 million in all, an effective 12.4% on the dutiable value and $8.19 per $100 of goods once the free entries are counted.
The spread between origins is real. Among origins with at least 2% of the heading, China paid the most duty relative to value — $27.22 per $100 — while Canada paid $1.06. On a $250,000 purchase order that gap is about $65,000 in duty alone, which is worth pricing into a sourcing decision rather than discovering on the entry summary.
10-digit tariff lines under HTS 9026
| HTS code | Description | Import value | Share | Duty per $100 | Largest origin |
|---|---|---|---|---|---|
| 9026.20.40.00 | — | $654 million | 36.7% | $7.64 | Mexico |
| 9026.20.80.00 | — | $176 million | 9.9% | $10.18 | China |
| 9026.10.20.40 | Flow meters | $170 million | 9.6% | $8.40 | Mexico |
| 9026.90.20.00 | — | $169 million | 9.5% | $9.10 | Mexico |
| 9026.10.20.80 | Other | $141 million | 7.9% | $7.27 | Mexico |
| 9026.80.20.00 | — | $133 million | 7.5% | $8.34 | Germany |
| 9026.90.60.00 | — | $108 million | 6% | $9.22 | Germany |
| 9026.10.60.00 | — | $70.8 million | 4% | $6.55 | Mexico |
| 9026.90.40.00 | — | $59.1 million | 3.3% | $6.16 | Mexico |
| 9026.80.60.00 | — | $55.2 million | 3.1% | $9.91 | China |
| 9026.10.40.00 | — | $42.6 million | 2.4% | $7.01 | Canada |
| 9026.80.40.00 | — | $1.6 million | 0.1% | $15.82 | China |
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
The 10-digit lines under heading 9026
12 ten-digit lines carried trade under this heading in the period. The largest, 9026.20.40.00, took 36.7% of the heading at $654 million. 9026.20.80.00, 9026.10.20.40 and 9026.90.20.00 follow. Rates diverge between those lines, so the classification your broker files is worth checking against the goods rather than carried over from the last entry.
What the duty stack looks like
The rate on an entry is not one number. It is a stack: the general (column 1) rate for the 10-digit line, less any trade-agreement preference the goods qualify for, plus whatever additional duties apply to that product and origin, all applied to the customs value declared. The $8.19 per $100 above is what that stack averaged across every entry in this heading — a benchmark, not a quote.
For the origins carrying the most volume, the per-country breakdowns go a level deeper: Germany (9026.20.40), China (9026.20.40) and Japan (9026.20.40). To price a specific shipment, put your 10-digit code and country of origin into the tariff simulator.
What this means for your next shipment
Classify first, confirm origin second, quote freight third. A heading like 9026 rewards that order, because the duty differences between lines and between origins are usually larger than the freight differences on the same lane. Airlift USA handles the freight and coordinates classification and entry through our licensed broker network.
For the operational side rather than the tariff side, see the Science & Technology Equipment guide for how this cargo moves, the China to USA lane for transit times and ports and the heading index to compare against the rest of chapter 90.
Price a shipment under HTS 9026
Airlift USA has moved ocean and air freight into the United States since 1999 and coordinates HTS classification, ISF and entry filing through our licensed broker network.
Methodology
Figures come from the U.S. Census Bureau's international trade statistics for imports for consumption — the customs value of goods entered into US commerce, not shipments in transit or goods held in bonded warehouses. The period is March–July 2026 (5 months of data), and coverage is limited to 55 major origin countries, so totals here are lower than published US-wide totals for the same heading.
Three quantities are additive and everything else is derived from them: entered customs value, dutiable value and calculated duty. Effective duty is calculated duty divided by dutiable value — the rate CBP actually applied to the part of the trade that was dutiable. Dutiable share is dutiable value divided by entered value; below 20% it means the trade entered mostly free, under a trade agreement or a duty-free provision. Duty per $100 spreads calculated duty across all entered value, which is the figure comparable between origins.
Chapter 98 and chapter 99 are excluded: those are special classification and temporary-measure provisions rather than product headings. Heading and tariff-line descriptions are the current HTS text. Values are historical and reflect duty as calculated at the time of entry; they are not a quote and not a prediction of the rate on a future shipment.
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value. Census data is a work of the US government and is in the public domain.
Frequently asked questions
Which countries export the most instruments and apparatus for measuring or checking the flow to the United States?
Mexico is the largest origin under HTS heading 9026, with $457 million entered between March and July 2026, or 25.7% of the heading. Germany follows at 13.8% and China at 8.9%. Figures cover the 55 major origin countries in this dataset. Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
How much import duty is paid on instruments and apparatus for measuring or checking the flow under HTS 9026?
Across all origins, 66% of the entered value was dutiable and CBP calculated $146 million of duty over the five months — an effective 12.4% on dutiable value, or about $8.19 per $100 of goods across the whole heading. Your own rate depends on the exact 10-digit line and country of origin.
Which HTS codes fall under heading 9026?
Heading 9026 covers instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases (for example, flow meters, level gauges, manometers, heat meters), excluding instruments and apparatus of heading 9014, 9015, 9028 or 9032; parts and accessories thereof. 12 ten-digit lines recorded imports in this period; the largest by value were 9026.20.40.00, 9026.20.80.00, 9026.10.20.40 and 9026.90.20.00. Duty rates differ between those lines, so the 10-digit classification matters more than the heading.
Which origin pays the lowest duty on instruments and apparatus for measuring or checking the flow?
Among origins with at least 2% of the heading, Canada paid the least duty relative to entered value — about $1.06 per $100 of goods, with 90.7% of its value entering free. Duty is only one part of landed cost, and a claim has to be substantiated at entry to be allowed.
How do I check the duty on my own shipment?
Use the Airlift USA tariff simulator with your 10-digit HTS code and country of origin to see the duty stack that applies today, then confirm the classification before you file. Airlift USA coordinates classification and entry filing through our licensed broker network and can review the code against your product specification.