; and (B) if the approved plans comply with this Act and any construction on the dwelling unit violates this Act, the person or entity responsible for the construction shall be liable for that construction. (d) Enforcement by Attorney General (1) Civil action If the Attorney General has reasonable cause to believe that a person or group of persons has violated this Act, the Attorney General may bring a civil action in an appropriate district court of the United States. (2) Intervention in private action The Attorney General may, upon timely application, intervene in any civil action brought under subsection (c) by a private person if the Attorney General certifies that the case is of general public importance. (e) Relief In any civil action brought under this section, if the court finds that a violation of this Act has occurred or is about to occur, the court— (1) may award to the plaintiff actual and punitive damages