; (ii) is evaluated using rigorous research designs; and (iii) has yet to demonstrate a significant positive outcome in terms of increasing work and earnings of participants in a cost-effective way. (4) Funding Of the amounts made available to carry out section 403(b) for fiscal year 2018 and each succeeding fiscal year, the Secretary shall reserve such funds as are necessary to carry out this subsection. . 3. Effective date The amendment made by this Act shall take effect on October 1, 2017.