; or (B) the design, implementation, and evaluation of new models or approaches for providing such benefits. (2) Requirement regarding retirement-related benefits An eligible organization that receives a grant under subsection (a) may not use the grant to fund a model or approach described in paragraph (1) that provides only retirement-related benefits. (c) Potential for national applicability In awarding grants under subsection (a), the Secretary shall consider the potential of the model or approach described in subsection (b)(1) to be replicated on a large scale or at the national level. (d) Applications Each eligible organization that desires to receive a grant under subsection (a) shall submit an application to the Secretary, at such time, in such manner, and accompanied by such information as the Secretary may require. 5. Report to Congress Not later than September 30, 2020, the Comptroller General of the United States shall evaluate the outcome of the grants awarded under section 4(a) and provide a report on such evaluation to Congress. Such report shall include an assessment of the impact of such grants on the compensation of workers receiving portable benefits under section 4. 6. Authorization of appropriations (a) In general There is authorized to be appropriated for fiscal year 2018— (1) $5,000,000 to carry out the grants described in section 4(b)(1)(A); and (2) $15,000,000 to carry out the grants described in section 4(b)(1)(B). (b) Availability Amounts appropriated under subsection (a) shall remain available until expended.