With the federal government and state and local governments lifting mask requirements, it feels like we may be coming to the end of a two-year masking nightmare in schools. As cases begin to decline, schools across the country are allowing staff and students to come to school mask-free. When it comes to medically-fragile students, however, the risks of COVID-19 may continue for a long time after the rest of the world has moved on from the virus. What responsibilities remain for schools to require masking in the school environment to protect students with disabilities?