This subpart implements the duty preference and related customs provisions applicable to imported and exported goods under the United States-Korea Free Trade Agreement (the UKFTA) signed on June 30, 2007, and under the United States-Korea Free Trade Agreement Implementation Act (the Act; Pub. L. 112-41, 125 Stat. 428 (19 U.S.C. 3805 note)). Except as otherwise specified in this subpart, the procedures and other requirements set forth in this subpart are in addition to the customs procedures and requirements of general application contained elsewhere in this chapter. Additional provisions implementing certain aspects of the UKFTA and the Act are contained in parts 24, 162, and 163 of this chapter.