; (B) the total amount expended, including related administrative expenses, for the provision of disability insurance benefits under section 223(a)(3) of the Social Security Act to individuals diagnosed with a terminal illness; and (C) recommendations for such legislation and administrative actions as are determined appropriate for preventing fraud, waste, and abuse related to such benefits. (2) Report by Government Accountability Office Not later than 4 years after the date of the enactment of this Act, the Comptroller General of the United States shall submit a report to the relevant committees of Congress that evaluates the provision of disability insurance benefits to terminally ill individuals and provides recommendations for such legislation and administrative actions as are determined appropriate to improve the provision of such benefits to such individuals. (c) Effective date; sunset (1) In general Subject to paragraph (2), the amendments made by this section shall apply to benefits payable for months beginning after December 31, 2017. (2) Sunset The amendments made by subsection (a) shall cease to have effect on January 1, 2023, and upon such date, section 223 of the Social Security Act shall read as if such amendments had not been enacted.