As states resume conducting Medicaid and CHIP re-determinations of eligibility, the U.S. faces the most dramatic shift in coverage since implementation of the Affordable Care Act. As millions of people transition from Medicaid to private insurance coverage, they could experience disruptions in critical health care services. In their latest post for the Commonwealth Fund, Sabrina Corlette and Maanasa Kona review state-level continuity of care protections and actions states can take to preserve access to life-saving services for our most medically vulnerable.