A person who believes that he or she has been discharged or otherwise discriminated against by any person in violation of subsection (a) may, not later than 180 days after the date on which such alleged violation occurs, file (or have any person file on his or her behalf) a complaint with the Secretary of Labor alleging such discharge or discrimination and identifying the person responsible for such act.
Not later than 30 days after the date of receipt of notification of a determination of the Secretary of Labor under this paragraph, either the person alleged to have committed the violation or the complainant may file objections to the findings or preliminary order, or both, and request a hearing on the record. The filing of such objections shall not operate to stay any reinstatement remedy contained in the preliminary order. Any such hearing shall be conducted expeditiously, and if a hearing is not requested in such 30-day period, the preliminary order shall be deemed a final order that is not subject to judicial review.
The Secretary of Labor shall dismiss a complaint filed under this subsection, and shall not conduct an investigation otherwise required under paragraph (2), unless the complainant makes a prima facie showing that any behavior described in paragraphs (1) through (4) of subsection (a) was a contributing factor in the unfavorable personnel action alleged in the complaint.
Notwithstanding a finding by the Secretary of Labor that the complainant has made the showing required under subparagraph (A), no investigation otherwise required under paragraph (2) shall be conducted, if the employer demonstrates, by clear and convincing evidence, that the employer would have taken the same unfavorable personnel action in the absence of that behavior.
The Secretary of Labor may determine that a violation of subsection (a) has occurred only if the complainant demonstrates that any behavior described in paragraphs (1) through (4) of subsection (a) was a contributing factor in the unfavorable personnel action alleged in the complaint. Relief may not be ordered under subparagraph (A) if the employer demonstrates by clear and convincing evidence that the employer would have taken the same unfavorable personnel action in the absence of that behavior.
Not later than 120 days after the date of conclusion of any hearing under paragraph (2), the Secretary of Labor shall issue a final order providing the relief prescribed by this paragraph or denying the complaint. At any time before issuance of a final order, a proceeding under this subsection may be terminated on the basis of a settlement agreement entered into by the Secretary of Labor, the complainant, and the person alleged to have committed the violation.
If an order is issued under clause (i), the Secretary of Labor, at the request of the complainant, shall assess against the person against whom the order is issued, a sum equal to the aggregate amount of all costs and expenses (including attorney fees and expert witness fees) reasonably incurred, as determined by the Secretary of Labor, by the complainant for, or in connection with, the bringing of the complaint upon which the order was issued.
If the Secretary of Labor has not issued a final order within 210 days after the date of filing of a complaint under this subsection, or within 90 days after the date of receipt of a written determination, the complainant may bring an action at law or equity for de novo review in the appropriate district court of the United States having jurisdiction, which shall have jurisdiction over such an action without regard to the amount in controversy, and which action shall, at the request of either party to such action, be tried by the court with a jury.
Unless the complainant brings an action under subparagraph (D), any person adversely affected or aggrieved by a final order issued under subparagraph (A) may file a petition for review of the order in the United States Court of Appeals for the circuit in which the violation with respect to which the order was issued, allegedly occurred or the circuit in which the complainant resided on the date of such violation, not later than 60 days after the date of the issuance of the final order of the Secretary of Labor under subparagraph (A). Review shall conform to chapter 7 of title 5. The commencement of proceedings under this subparagraph shall not, unless ordered by the court, operate as a stay of the order. An order of the Secretary of Labor with respect to which review could have been obtained under this subparagraph shall not be subject to judicial review in any criminal or other civil proceeding.
If any person has failed to comply with a final order issued under paragraph (4), the Secretary of Labor may file a civil action in the United States district court for the district in which the violation was found to have occurred, or in the United States district court for the District of Columbia, to enforce such order. In actions brought under this paragraph, the district courts shall have jurisdiction to grant all appropriate relief including injunctive relief and compensatory damages.
A person on whose behalf an order was issued under paragraph (4) may commence a civil action against the person to whom such order was issued to require compliance with such order. The appropriate United States district court shall have jurisdiction, without regard to the amount in controversy or the citizenship of the parties, to enforce such order.
Except as provided under paragraph (3), and notwithstanding any other provision of law, the rights and remedies provided for in this section may not be waived by any agreement, policy, form, or condition of employment, including by any predispute arbitration agreement.
Except as provided under paragraph (3), and notwithstanding any other provision of law, no predispute arbitration agreement shall be valid or enforceable to the extent that it requires arbitration of a dispute arising under this section.