This bill strengthens and expands mental health services through certified community behavioral health clinics by improving their funding, oversight, and legal protections. It requires states to use federal data when certifying these clinics and allows them to mandate accreditation starting in 2026, while establishing a new Medicaid payment system based on clinics' reasonable costs with annual inflation adjustments. The legislation provides up to $552.5 million annually from 2026 to 2030 in federal grants to support clinic operations, staff training, and technology, plus additional funding for technical assistance and data collection systems. It also gives these clinics the same Medicare appeal rights as rural health clinics and extends federal liability protection to their clinicians, similar to protections available at federally qualified health centers. Overall, the bill aims to increase access to mental health and substance use treatment by making it more financially viable for clinics to operate while reducing their regulatory and legal burdens.