31 C.F.R. § 540.315 Uranium-235 (U235).
Title 31 - Money and Finance: Treasury
The term uranium-235 or U235 means the fissile isotope found in natural uranium.
Title 31: Money and Finance: Treasury
PART 540—HIGHLY ENRICHED URANIUM (HEU) AGREEMENT ASSETS CONTROL REGULATIONS
Subpart C—General Definitions
§ 540.315 Uranium-235 (U235).
