; or (F) assisted or participated or is about to assist or participate in any manner in such a proceeding or in any other manner in such a proceeding or in any other action to carry out the purposes of this title. (2) Enforcement action Any employee covered by this section who alleges discrimination by an employer in violation of paragraph (1) may bring an action, subject to the statute of limitations described in section 3730(h)(3) of title 31, United States Code, and the rules and procedures, legal burdens of proof, and remedies applicable under section 31105 of title 49, United States Code. (3) Application (A) Nothing in this subsection shall be construed to diminish the rights, privileges, or remedies of any employee under any Federal or State law or regulation, including the rights and remedies against retaliatory action under section 3730(h) of title 31, United States Code, or under any collective bargaining agreement. The rights and remedies in this section may not be waived by any agreement, policy, form, or condition of employment. (B) Nothing in this subsection shall be construed to preempt or diminish any other Federal or State law or regulation against discrimination, demotion, discharge, suspension, threats, harassment, reprimand, retaliation, or any other manner of discrimination, including the rights and remedies against retaliatory action under section 3730(h) of title 31, United States Code. (4) Definitions In this subsection: (A) Employer The term employer means any person engaged in profit or a nonprofit business or industry, including one or more individuals, partnerships, associations, corporations, trusts, professional membership organizations including a certification, disciplinary, or other professional body, unincorporated organizations, nongovernmental organizations, or trustees, and subject to liability for violating the provisions of this Act. (B) Employee The term employee means any individual performing activities under this Act on behalf of an employer. 302. Qualifications for