Updates Medicare rules for critical access hospitals (CAHs). It changes the ambulance-service fee schedule for ambulance services provided by CAHs and creates a rule that, beginning January 1, 2026, certain hospitals may be treated as meeting the 15‑mile distance requirement for CAH designation when the hospital has relocated or opened a new facility 10–15 miles away and can document that it met the 15‑mile requirement at its last certification. The Secretary of Health and Human Services must issue implementing regulations within one year.