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SITCSection 7
U.S. exports of nuclear reactors (SITC 71871) totaled $9.0M in July 2026.
Nuclear Reactors imports of $97K in July 2026 ran 433% above the year-to-date monthly average of $18K.
Last updated: July 2026 dataComplete nuclear reactor units — pressure vessels, moderator systems, and associated primary-circuit components assembled as a reactor — are among the most tightly regulated capital goods in international trade, subject to Nuclear Regulatory Commission (NRC) licensing, Department of Energy oversight, and Nuclear Non-Proliferation Treaty commitments. Export and import of reactor systems require specific NRC authorizations, and 123 Agreements (civil nuclear cooperation agreements) govern the bilateral framework under which transfers occur. Commercial procurement is limited to a small number of specialized vendors and utility buyers, making this one of the lowest-volume but highest-value headings in the machinery classification.
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3 shipments/mo
Basic heading 71871 · $97K of $175.6B
Importation of a nuclear reactor requires NRC licensing under the Atomic Energy Act, and the transaction must be consistent with any applicable 123 Agreement between the US and the exporting country. The Department of Energy may also have oversight roles depending on the reactor type and fuel cycle implications. These requirements apply in addition to standard CBP entry procedures.
Yes — the heading covers nuclear reactors regardless of design type or scale, including small modular reactors, research reactors, and large commercial light-water reactors. The classification turns on whether the unit functions as a nuclear reactor (sustaining a controlled fission chain reaction), not on its power output or physical size.
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Exports · July 2026
destination
United Kingdom and Mexico together take 99% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$97KYoY · Pro
Exports
$9.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.