; and (B) apply with respect to any covered transaction the review or investigation of which is initiated under section 721 of the Defense Production Act of 1950 on or after the date described in subparagraph (A). (2) Nondelegation of determination The determination of the chairperson of the Committee on Foreign Investment in the United States under paragraph (1)(A) may not be delegated. (c) Authorization for pilot programs (1) In general Beginning on the date of the enactment of this Act and ending on the date described in subsection (b)(1)(A), the Committee on Foreign Investment in the United States may, at its discretion, conduct one or more pilot programs to implement any authority provided pursuant to any provision of or amendment made by this Act not specified in subsection (a). (2) Publication in Federal Register A pilot program may not commence until the date that is 30 days after publication in the Federal Register of a determination by the chairperson of the Committee of the scope of and procedures for the pilot program. That determination may not be delegated. 27. Severability If any provision of this Act or an amendment made by this Act, or the application of such a provision or amendment to any person or circumstance, is held to be invalid, the application of that provision or amendment to other persons or circumstances and the remainder of the provisions of this Act and the amendments made by this Act, shall not be affected thereby.