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 D—Interpretations (§540.401 to §540.405)