; and (2) recommendations for such legislative or administrative actions needed for improving the assistance described in paragraph (1), as the Comptroller General determines appropriate. (d) Independent evaluations Not later than 6 months after the date of enactment of this title, the Secretary shall enter into a contract with an independent entity to provide independent evaluations of activities supported by grants under this title and activities of the technical assistance center established under section 302. 306. Authorization of appropriations (a) In general There are authorized to be appropriated— (1) for the establishment and activities of the technical assistance center under section 302, $2,000,000 for each of fiscal years 2024 through 2028; and (2) for grants under section 303, $1,000,000,000 for fiscal year 2024. (b) Availability Amounts made available under this title shall remain available until September 30, 2033. IV Evaluation 401. Evaluation of impact on access to HCBS (a) National survey on expanded HCBS access The Administrator of the Centers for Medicare & Medicaid Services, in coordination with the National Academy of Medicine, shall, not later than 7 years after the date of enactment of this Act, conduct or contract for a national survey of States, direct care professionals, family caregivers, and providers and recipients of home and community-based services, to determine the effects of the implementation of this Act and the amendments made by this Act on— (1) the availability and access to home and community-based services under the Medicaid program nationally and in each State; (2) the capacity of the direct service workforce to provide home and community-based services and information on the demographics (as defined in section 2) of such workforce; (3) the compensation and working conditions, including scheduling and benefits, of direct care workers; (4) the economic effects on beneficiaries and on families with a member receiving home and community-based services through Medicaid