; 120 Stat. 147) is repealed, and part D of title IV of the Social Security Act shall be applied as if the amendment made by subsection (a) of that section had not been enacted. (e) Repeal of mandatory fee for child support collection Effective on the date of enactment of this Act, section 7310 of the Deficit Reduction Act of 2005 ( Public Law 109–171 ; 120 Stat. 147) is repealed, and part D of title IV of the Social Security Act shall be applied as if the amendments made by that section had not been enacted. (f) Study and report Not later than October 1, 2018, the Secretary of Health and Human Services shall study and submit a report to Congress regarding the following: (1) The effect of age eligibility restrictions for the earned income tax credit established under section 32 of the Internal Revenue Code of 1986 for individuals without qualifying children on— (A) the ability of young parents to pay child support; (B) compliance with child support orders; and (C) the relationship between young noncustodial parents and their children. (2) The impact of State earned income tax credit programs, especially such programs with targeted benefits for noncustodial parents, on— (A) the ability of noncustodial parents to pay child support; (B) compliance with child support orders