carried out pursuant to such section. 3424. Planning and development grants (a) In general The Secretary may provide planning grants to public, nonprofit private, and Indian entities for purposes of assisting such entities in expanding their capacity to provide substance use disorder treatment services in low-income communities and affected subpopulations that are underserviced with respect to such services. (b) Amount A grant under this section may be made in an amount not to exceed $150,000. 3425. Authorization of appropriations There is authorized to be appropriated to carry out this subtitle— (1) $500,000,000 for fiscal year 2020