; and (iii) may, to vindicate the public interest, assess punitive damages against the respondent— (I) in an amount not exceeding $500,000, for a first violation; and (II) in an amount not exceeding $1,000,000, for any subsequent violation. (B) Fees and costs In a civil action under this subsection, the court, in its discretion, may allow the prevailing party, other than the United States, a reasonable attorney’s fee and costs. The United States shall be liable for such fees and costs to the extent provided by section 2412 of title 28, United States Code. (4) Intervention in civil actions Upon timely application, any person may intervene in a civil action commenced by the Attorney General under paragraphs (1) and (2) if the action involves an alleged violation of subsection (a) with respect to which such person is an aggrieved person (including a person who is a complainant under subsection (b)) or a conciliation agreement to which such person is a party. (e) Definitions In this section: (1) Aggrieved person The term aggrieved person means— (A) a person who believes that the person was or will be injured in violation of subsection (a)