1. Short title This Act may be cited as the Trade Security Act of 2018 . 2. Investigations to determine effects on national security of imports of articles and congressional review of presidential actions (a) Investigations and determinations by Secretary of Defense Section 232 of the Trade Expansion Act of 1962 ( 19 U.S.C. 1862 ) is amended— (1) in subsection (b)— (A) in paragraph (1)— (i) in subparagraph (A), by striking Secretary of Commerce and all that follows through Secretary ) and inserting Secretary of Defense ; and (ii) in subparagraph (B)— (I) by striking Secretary shall and inserting Secretary of Defense shall ; and (II) by striking Secretary of Defense of and inserting Secretary of Commerce of ; (B) in paragraph (2)— (i) by striking subparagraph (B); (ii) in the matter preceding clause (i)— (I) by striking (A) In and inserting In ; and (II) by striking Secretary and inserting Secretary of Defense ; and (iii) by striking clauses (i) through (iii) and inserting the following: (A) consult with the Secretary of Commerce regarding the methodological and policy questions raised in any investigation initiated under paragraph (1); (B) prepare an assessment of the defense requirements and national security impact of any article that is the subject of an investigation, which shall focus on— (i) the impact of the importation of the article on military readiness and critical infrastructure; and (ii) the need for a reliable supply of the article to protect national security; (C) seek information and advice from the Secretary of Commerce; (D) consult with appropriate officers of the United States; (E) consult with members of the Committee on Finance of the Senate and members of the Committee on Ways and Means of the House of Representatives; and (F) hold public hearings, co-chaired with the Department of Commerce, or otherwise afford interested parties an opportunity to present information and advice relevant to such investigation. ; (C) in paragraph (3)— (i) by redesignating subparagraph (B) as subparagraph (D)