made by this section shall apply to principal residences purchased after December 31, 2017. (b) Use of hardest hit fund amounts for commercial demolition (1) Authority Notwithstanding any provision of title I of the Emergency Economic Stabilization Act of 2008 ( 12 U.S.C. 5211 et seq.), any regulation, guidance, order, or other directive of the Secretary of the Treasury, or any agreement (or amendment thereto) entered into under the Hardest Hit Fund program of the Secretary under such title I, to the extent that any amounts of assistance that have been, or are, allocated for or provided to a State or State agency through the Hardest Hit Fund program may be used for demolishing and greening vacant and abandoned blighted residential properties and related expenses, such amounts may also be used for demolishing and greening vacant and abandoned blighted commercial properties and related expenses. (2) Report Not later than the expiration of the 2-year period beginning on the date of the enactment of this Act, the Secretary of the Treasury shall submit a report to the Congress regarding the impacts of using assistance provided under the Hardest Hit Fund program pursuant to the authority provided under paragraph (1) and the effectiveness of such use. B Retail Redlining and Food Deserts 221. Economic growth, retention, and recruitment of commercial investment in economically underserved communities The Small Business Investment Act of 1958 ( 15 U.S.C. 661 et seq.) is amended by adding at the end the following new title: VIII ECONOMIC GROWTH, RETENTION, AND RECRUITMENT OF COMMERCIAL INVESTMENT IN ECONOMICALLY UNDERSERVED COMMUNITIES 811. Purpose The purpose of this title is to assist with the economic growth of economically underserved communities that have potential for strong Class 1 commercial investment, but that continue to have a difficult time recruiting Class 1 commercial investment. 812. Grant program (a) Authorization From amounts appropriated under section 814, the Administrator shall make grants on a