Fund Board. (b) Composition, duties, and responsibilities Subject to the provisions of this Act, the following provisions shall apply with respect to the USAccount Fund Board in the same manner and to the same extent as such provisions relate to the Federal Retirement Thrift Investment Board: (1) Section 8472 of title 5, United States Code (relating to composition of Federal Retirement Thrift Investment Board). (2) Section 8474 of such title (relating to Executive Director). (3) Section 8475 of such title (relating to investment policies). (4) Section 8476 of such title (relating to administrative provisions). 8. Fiduciary responsibilities (a) In general Under regulations of the Secretary of Labor, the provisions of sections 8477 and 8478 of title 5, United States Code, shall apply in connection with the USAccount Fund and the accounts maintained in such Fund in the same manner and to the same extent as such provisions apply in connection with the Thrift Savings Fund and the accounts maintained in the Thrift Savings Fund. (b) Investigative authority Any authority available to the Secretary of Labor under section 504 of the Employee Retirement Income Security Act of 1974 ( 29 U.S.C. 1134 ) is hereby made available to the Secretary of Labor, and any officer designated by the Secretary of Labor, to determine whether any person has violated, or is about to violate, any provision applicable under subsection (a). (c) Exculpatory provisions