that the covered employee has been discharged, disciplined, or otherwise retaliated or discriminated against by any person in violation of subsection (c)(1) or paragraph (2) of this subsection may seek relief for such violation by filing a complaint with the Secretary under paragraph (5). (4) Statute of limitations (A) In general A covered employee may take the action permitted by paragraph (3) not later than 180 days after the later of— (i) the date on which an alleged violation of subsection (c)(1) or paragraph (2) of this subsection occurs