; or (bb) any other claim of abuse, neglect, or mistreatment of immigrant children. (iii) Review and evaluation (I) In general Not later than 2 years after the date of the enactment of this Act, and every 2 years thereafter, the Ombudsperson shall complete a review of the reporting mechanisms under this subparagraph to evaluate whether such mechanisms are sufficient to ensure the oversight and monitoring required by this title. (II) Report Not later than 30 days after the completion of each review required by subclause (I), the Ombudsperson shall submit to Congress a report on the results of the review that includes, in the case of a determination that such mechanisms are insufficient, recommendations for their improvement. (G) Report to Congress (i) In general Not later than September 30 each year, the Ombudsperson shall submit to Congress a report on the accomplishments and challenges of the Office of the Ombudsperson during the fiscal year ending on that date. (ii) Elements Each report required by clause (i) shall include, for the applicable fiscal year, the following: (I) A summary of the status of immigrant children in Federal Government custody that highlights broader trends and recommendations for future action. (II) Statistical information on immigrant children in Federal Government custody, together with an analysis of such information. (III) A summary of complaints received and proposed resolutions. (IV) A description of the investigations into claims of abuse, neglect, or mistreatment of immigrant children in Federal Government custody, including a summary of the results of such investigations. (V) Any attempt by the Secretary of Homeland Security, the Secretary of Health and Human Services, or any entity to which the authority of the Secretary of Homeland Security or the Secretary of Health and Human Services is delegated, to interfere with the independence of the Office of the Ombudsperson. (VI) A description of the objectives of the Office of the Ombudsperson for the next fiscal year. (H) Additional