; and (2) establish processes to document and track the progress of such veterans under the program in terms of the benefits and improvements noted as a result of the program. (h) Comptroller General briefing and report (1) Briefing Not later than one year after the date on which the Secretary commences the program under subsection (a), the Comptroller General of the United States shall provide to the Committee on Veterans’ Affairs of the Senate and the Committee on Veterans’ Affairs of the House of Representatives a briefing on the methodology established for the program. (2) Report (A) In general Not later than 3 years after providing the briefing under paragraph (1), the Comptroller General shall submit to the Committee on Veterans’ Affairs of the Senate and the Committee on Veterans’ Affairs of the House of Representatives a report on the program. (B) Elements The report required under subparagraph (A) shall include an evaluation of the approach and methodology used for the program with respect to— (i) helping veterans with severe post-traumatic stress disorder return to civilian life; (ii) relevant metrics, such as reduction in scores under the post-traumatic stress disorder checklist (PCL–5), improvement in psychosocial function, and therapeutic compliance; and (iii) reducing the dependence of participants in the program on prescription narcotics and psychotropic medication. (i) Authorization of appropriations There is authorized to be appropriated for the period of fiscal year 2020 through fiscal year 2022, $10,000,000 to carry out the program under this section.