; (ii) the degree to which the proposed reform effort will contribute to change in institutional culture and policy such that greater value is placed on the recruitment, retention, and advancement of faculty members from underrepresented minority groups; (iii) the likelihood that the institution of higher education will sustain or expand the proposed reform effort beyond the period of the grant; and (iv) the degree to which evaluation and assessment plans are included in the design of the proposed reform effort. (C) Grant distribution The Director of the Foundation shall ensure, to the extent practicable, that grants awarded under this section are made to a variety of types of institutions of higher education. (5) Authorization of appropriations There are authorized to be appropriated to carry out this subsection $8,000,000 for each of fiscal years 2020 through 2024. . (b) National Science Foundation support for broadening participation in undergraduate STEM education Section 305 of the American Innovation and Competitiveness Act ( 42 U.S.C. 1862s–5 ), as amended by subsection (b), is further amended by inserting after subsection (e) the following: (f) Support for broadening participation in undergraduate STEM education (1) In general The Director of the Foundation shall award grants to institutions of higher education (or a consortium of such institutions) to implement or expand research-based reforms in undergraduate STEM education for the purpose of recruiting and retaining students from minority groups who are underrepresented in STEM fields. (2) Merit review; competition Grants shall be awarded under this subsection on a merit-reviewed, competitive basis. (3) Use of funds Activities supported by grants under this subsection may include— (A) implementation or expansion of innovative, research-based approaches to broaden participation of underrepresented minority groups in STEM fields