; (ii) the Secretary submits to the Committees on Veterans’ Affairs of the Senate and the House of Representatives a report setting forth the amount of the additional expenditure and a justification for the additional expenditure; and (iii) the Chairmen of the Committees on Veterans’ Affairs of the Senate and the House of Representatives transmit to the Secretary a letter approving of the additional expenditure. (3) The waiver provisions in subsection (f) shall not apply unless the Secretary, in accordance with the requirements in subsection (f), submits the first proposal for a pilot program not later than 18 months after the date of the enactment of the Caring for Our Veterans Act of 2018 . (4) Notwithstanding section 502 of this title, decisions by the Secretary under this section shall, consistent with section 511 of this title, be final and conclusive and may not be reviewed by any other official or by any court, whether by an action in the nature of mandamus or otherwise. (5) (A) If the Secretary determines that a pilot program is not improving the quality of care or producing cost savings, the Secretary shall— (i) propose a modification to the pilot program in the interim report that shall also be considered a report under subsection (f)(2) and shall be subject to the terms and conditions of subsection (f)(2); or (ii) terminate such pilot program not later than 30 days after submitting the interim report to Congress. (B) If the Secretary terminates a pilot program under subparagraph (A)(ii), for purposes of subparagraphs (F) and (G) of subsection (f)(2), such interim report will also serve as the final report for that pilot program. (h) Evaluation and reporting requirements (1) The Secretary shall conduct an evaluation of each model tested, which shall include, at a minimum, an analysis of— (A) the quality of care furnished under the model, including the measurement of patient-level outcomes and patient-centeredness criteria determined appropriate by the Secretary