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CFR > Title 31 - Money and Finance: Treasury > SUBTITLE B—Regulations Relating to Money and Finance > CHAPTER V—OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY (parts 501 to 598) > PART 540—HIGHLY ENRICHED URANIUM (HEU) AGREEMENT ASSETS CONTROL REGULATIONS > SUBPART C—General Definitions (§540.301 to §540.319) > 540.316—Uranium enrichment.
540.316—Uranium enrichment.
The term uranium enrichment means the process of increasing the concentration of the isotope U235 relative to that of the isotope U238.