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 536—NARCOTICS TRAFFICKING SANCTIONS REGULATIONS > SUBPART C—General Definitions (§536.301 to §536.317) > 536.307—Interest.