Amends Social Security Act provisions for Medicaid home- and community-based services (HCBS) waivers to increase transparency and expand who States may cover under certain waivers. It requires new waiver-related information to be posted on the CMS website (beginning Jan 1, 2028) and directs HHS to issue guidance by Jan 1, 2026 allowing up to 60 days of interim HCBS while a written plan of care is finalized. States must meet specified conditions before the Secretary may approve waiver payments for some people who lack a prior eligibility determination under the existing statutory standard.