Enriched Uranium (U-235), Plutonium & Related Compounds

Enriched uranium and plutonium are tightly controlled nuclear materials whose import into the United States requires authorization under the Atomic Energy Act and oversight by the Nuclear Regulatory Commission (NRC), in addition to standard CBP entry procedures. The US schedule breaks this heading into uranium oxide enriched in U-235 (2844200010), uranium fluoride enriched in U-235 (2844200020), other enriched uranium compounds (2844200030), and plutonium compounds, alloys, and dispersions (2844200050). Uranium fluoride (UF₆) is the dominant form used in commercial enrichment services, making this heading central to the nuclear fuel cycle for power utilities. The United Kingdom, Russia, and France are the leading foreign sources, reflecting the global concentration of enrichment capacity among a small number of state-affiliated or licensed facilities.