The Secretary of Labor, with respect to any matter under this part, may—
(1) issue subpoenas for and compel the attendance of witnesses;
(2) administer oaths;
(3) examine witnesses; and
(4) require the production of books, papers, documents, and other evidence.
(Pub. L. 106–398, § 1 [div. C, title XXXVI, § 3632], as added Pub. L. 108–375, div. C, title XXXI, § 3163(a), Oct. 28, 2004, 118 Stat. 2186.)