The 9-8-8 Crisis Response Act expands mental health crisis services funded through federal programs by increasing support for crisis response infrastructure. The bill increases funding for a mental health crisis response partnership pilot program from $10 million annually to $100 million per year starting in fiscal year 2027, and it expands Medicaid coverage to include crisis call center operations and crisis stabilization facilities in addition to existing mobile crisis intervention services. The legislation defines crisis receiving and stabilization facilities as licensed centers that provide 23-hour observation and assessment along with 48-hour psychiatric crisis beds available around the clock on a sliding fee scale without rejecting patients based on ability to pay or other factors. States participating in these Medicaid-covered services receive an enhanced federal match rate of 85 percent, and the bill provides $5 million in new appropriations to support program administration. These changes take effect retroactively to align with the 2021 American Rescue Plan Act.