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End-UseCategory 2
U.S. imports of laboratory testing instruments (End-Use 21600) totaled $685.4M in July 2026, traded with 107 countries.
Importers of Laboratory Testing Instruments paid $65.4M in duties in July 2026 — an effective duty rate of 13% on $507.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataPrecision laboratory and testing instruments imported into the United States — from chromatography systems to coordinate-measuring machines — serve as critical inputs for pharmaceutical manufacturing, semiconductor fabrication, and academic research. Duty treatment varies significantly by instrument type and HTS subheading, and certain high-precision or dual-use instruments may be subject to Section 301 tariffs when sourced from China. Importers should also verify whether instruments intended for scientific research qualify for duty-free treatment under the Florence Agreement provisions administered through CBP.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
25.7K shipments/mo
End-Use codes describe different products on the import and export sides. Cross-direction exports are not shown for this slug.
Commodity 20 of 32 in category 2
Commodity 21600 · $685.4M of $148.5B
The Florence Agreement on the Importation of Educational, Scientific, and Cultural Materials allows duty-free entry for qualifying scientific instruments not available in comparable form from domestic manufacturers, when imported by accredited educational or research institutions. The application process is administered through CBP, and eligibility is determined on a case-by-case basis — consultation with a licensed customs broker is advisable.
The distinction often turns on design intent and precision grade: instruments built for controlled laboratory environments with high measurement accuracy typically classify under HTS Chapter 90, while industrial process-control sensors or gauges may fall under different headings. Technical specifications, product literature, and the manufacturer's intended use are key evidence in resolving classification disputes.
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Imports · July 2026
origin
customs district
Census does not publish district detail for this classification system.
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entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$685.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.