Emergency use authorizations (EUAs) are a mechanism to allow for the availability and use of medical products during a public health emergency. During the COVID-19 pandemic, hundreds of products have been authorized for use under an EUA. This has led to legal issues-most prominently, the legality of vaccine mandates. Language within the statute that created the EUA pathway has been subject to varying interpretations that could refuse or allow the implementation of EUA vaccine mandates and suits have been filed against organizations that have established vaccine mandates as a term of continued employment.