; (4) $500,000,000 for fiscal year 2022; (5) $500,000,000 for fiscal year 2023; (6) $500,000,000 for fiscal year 2024; (7) $500,000,000 for fiscal year 2025; (8) $500,000,000 for fiscal year 2026; (9) $500,000,000 for fiscal year 2027; and (10) $500,000,000 for fiscal year 2028. D Miscellaneous provisions 3431. Special projects of national significance (a) In general The Secretary, acting in consultation with the Director of the Office of National Drug Control Policy, shall award grants to entities to administer special projects of national significance to support the development of innovative and original models for the delivery of substance use disorder treatment services. (b) Grants The Secretary shall award grants under a project under subsection (a) to entities eligible for grants under subtitles A, B, and C based on newly emerging needs of individuals receiving assistance under this title. (c) Replication The Secretary shall make information concerning successful models or programs developed under this section available to grantees under this title for the purpose of coordination, replication, and integration. To facilitate efforts under this subsection, the Secretary may provide for peer-based technical assistance for grantees funded under this section. (d) Grants to tribal governments (1) Indian tribes In this section, the term Indian tribe has the meaning given such term in section 4 of the Indian Self-Determination and Education Assistance Act. (2) Use of funds The Secretary, acting through the Indian Health Service, shall use 10 percent of the amount available under this section for each fiscal year to provide grants to Indian tribes for the purposes of supporting the development of innovative and original models for the delivery of substance use disorder treatment and services, including the development of culturally-informed care models. (e) Authorization of appropriations There is authorized to be appropriated to carry out this section— (1) $500,000,000 for fiscal year 2019