qualified individuals, or an entity representing a qualified individual or such a class, of a violation of subsection (a)(1), or a complaint filed by an employment entity of a violation of subsection (c), of section 4 (including a related provision of the final rule issued under section 5(b)), the Commission may conduct an investigation. The investigation shall consist of a review of the corresponding website or application owned, operated, or utilized for covered use by an employment entity, or provided to an employment entity by a commercial provider, to determine whether the employment entity or commercial provider has violated the corresponding provision of section 4. (ii) Other investigation and review In addition, the Commission shall, on the Commission's own authority, investigate practices that may be violations of, and undertake periodic reviews of compliance of employment entities and commercial providers with, the corresponding provision of section 4 (including a related provision of the final rule issued under section 5(b)). (iii) Determination of violation If, after investigation or review described in this subparagraph, the Commission determines that an employment entity or commercial provider has violated the corresponding provision of section 4 (including a related provision of the final rule issued under section 5(b)), the Commission may take administrative action (including administrative resolution of a claim of such a violation) or bring a civil action in a district court of the United States. (B) Intervention If the Commission brings such a civil action based on a complaint filed by a qualified individual, class of qualified individuals, or entity, described in subparagraph (A), including an employment entity alleging a violation by a commercial provider, such qualified individual, class, or entity shall have the right to intervene in such civil action. (2) Civil action by others A qualified individual, class, or entity, described in paragraph (1)(A), including an employee or employment