; (B) in paragraph (2), by inserting, , in collaboration with U.S. Immigration and Customs Enforcement after Federal Bureau of Investigation ; and (C) in paragraph (3), by striking Secretary of the Treasury and inserting Secretary of Homeland Security . (3) Trade Facilitation and Trade Enforcement Act of 2015 Paragraph (2) of section 802(d) of the Trade Facilitation and Trade Enforcement Act of 2015 ( Public Law 114–125 ) is amended by inserting before the period at the end the following: or the Director of U.S. Immigration and Customs Enforcement, as determined by the Secretary of Homeland Security . (4) Homeland Security Act of 2002 Title IV of the Homeland Security Act of 2002 is amended— (A) in subtitle C— (i) in subsection (e) of section 428 ( 6 U.S.C. 236 ), by adding at the end the following new paragraph: (9) Delegated authority For purposes of this subsection, the Secretary shall act through the Director of U.S. Immigration and Customs Enforcement. ; and (ii) in section 432 ( 6 U.S.C. 240 )— (I) by redesignating subsection (e) as subsection (f); and (II) by inserting after subsection (d) the following new subsection: (e) Administration The Director of U.S. Immigration and Customs Enforcement shall administer BEST units established under this section. ; (B) in subtitle D— (i) by amending the subtitle heading to read as follows: U.S. Immigration and Customs Enforcement ; and (ii) by repealing sections 445 and 446 ( 6 U.S.C. 255 and 256); (C) in subtitle E— (i) in subsection (a)(2)(C) of section 451 ( 6 U.S.C. 271 ), by striking at the same level as the Assistant Secretary of the Bureau of Border Security and inserting in accordance with section 5314 of title 5, United States Code ; (ii) in subsection (c) of section 459 ( 6 U.S.C. 276 ), by striking Assistant Secretary of the Bureau of Border Security and inserting Director of U.S. Immigration and Customs Enforcement