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Reducing tariff costs for research equipment: A guide to the Scientific Instrument Exception

04 May 2026

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Key takeaways

The Scientific Instrument Exception allows qualifying nonprofit institutions and their vendors to import certain scientific instruments and apparatus into the United States entirely duty-free.

As shifting U.S. tariff policies continue to impact global trade dynamics, many importers face pressure to manage rising duties. For educational and research institutions, as well as the companies that support them, a lesser-known (but highly effective) tariff mitigation tool is the Scientific Instrument Exception. This exception allows qualifying nonprofit institutions and their vendors to import certain scientific instruments and apparatus entirely duty-free.

Basic framework

The U.S. Department of Commerce and U.S. Customs and Border Protection (CBP) administer and enforce a long-standing regulatory framework under 15 C.F.R. Part 301 that allows qualifying nonprofit institutions to import certain scientific instruments and apparatus duty-free. This framework stems from U.S. obligations under the Florence Agreement on the Importation of Educational, Scientific and Cultural Materials, as implemented by the Educational, Scientific and Cultural Materials Importation Act of 1966.

The Part 301 regulations apply when the importer is a public or private nonprofit institution established for educational or scientific purposes and the imported instrument will be used exclusively for educational purposes or pure scientific research. Further, there must be no instrument of equivalent scientific value that is manufactured in the United States.

Application process

Institutions seeking duty-free treatment must submit an application to CBP on Form ITA-338P in accordance with Part 301. The application must include sufficient technical detail to permit evaluation of the foreign instrument and any potentially comparable U.S. instruments. Upon CBP's approval, the application is transmitted to the Department of Commerce for a determination as to whether an instrument of equivalent scientific value is produced domestically. As a part of this process, Commerce publishes the application and invites comments from domestic manufacturers and other interested parties, who have 20 days to submit their views.

After the comment period closes, Commerce makes a final decision and notifies CBP. The entire process can take a number of months (though it does not necessarily need to be completed prior to the import.)

If the application is approved, the importer can classify the instrument as duty-free for customs purposes under Chapter 98 of the Harmonized Tariff Schedule of the United States (HTSUS), principally under HTSUS subheading 9810.00.60, with related provisions covering qualifying repair components and maintenance tools. Either the applicant institution or its vendor can serve as the importer of record for these purposes.

Additional information

Instruments imported duty-free under Part 301 must be used exclusively by the importing institution and may not be sold or put to commercial use for five years following entry. Transfer to other qualifying nonprofit institutions is permitted in limited circumstances, while unauthorized commercial use may result in retroactive assessment of duties.

U.S. universities and other research institutions (as well as vendors) that import scientific instruments should consider this procedure to secure duty-free imports of foreign instruments, which could provide significant savings.

In addition to the scientific instrument exemption under 15 C.F.R. Part 301, universities and research-focused organizations may also have access to other duty-free or reduced-duty import pathways, depending on the nature of the imported article and its intended end use. Among them, the United States has implemented the Nairobi Protocol to the Florence Agreement, which provides duty-free treatment for articles and accessories that are specially designed or adapted for the use or benefit of persons with permanent or chronic disabilities. Universities engaged in medical, biomedical, or assistive-technology research, as well as research companies developing or testing specialized devices, may therefore wish to assess whether particular imports fall within the scope of the Nairobi Protocol or other Chapter 98 provisions, separate from the Part 301 scientific instrument framework.

Our team is a resource to institutions navigating tariff mitigation strategies. We invite you to reach out to us at any point.

You can find Commerce's website on the scientific instrument exception here.

Authored by Joshua Kurland and Elizabeth Shneider.