For the purpose of any hearing or investigation under this chapter, the Secretary shall have the authority contained in sections 49 and 50 of title 15.
29 U.S. Code § 2004 - Authority of Secretary
(a) In generalThe Secretary shall—
cooperate with regional, State, local, and other agencies, and cooperate with and furnish technical assistance to employers, labor organizations, and employment agencies to aid in effectuating the purposes of this chapter; and
(b) Subpoena authority
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