As the COVID-19 pandemic hit California, its healthcare facilities started having oxygen supply problems: Too many people were needing ventilatory support too quickly.While some rationing and troubleshooting did have to occur, the state was largely able to create a centralized request and allocation system, which included regional oxygen depots, procurement contracts, and tip sheets on oxygen safety and conservation.To record the state's efforts, researchers published an outline of the state's efforts last month in Disaster Medicine and Public Health Preparedness."Oxygen plans are required at every level of disaster and pandemic response, from logisticians to end-users," said Asha Deveraux, MD, MPH, one of the authors of the article, in a