1996—Subsec. (a). Pub. L. 104–275 inserted “have reasonable access to and the right to interview persons with information relevant to the investigation and shall” after “at all reasonable times,”.

Amendment by Pub. L. 104–275 effective Oct. 13, 1994, see section 313 of Pub. L. 104–275, set out as a note under section 4301 of this title.

Section effective Oct. 13, 1994, and applicable to any matter pending with Secretary of Labor under former section 4305 of this title as of that date, see section 8(e) of Pub. L. 103–353, set out as a note under section 4301 of this title.