From ChildrensHealthDefense.org…..
Are state governments and private employers about to mandate COVID-19 vaccines?
There are many opaque current and future legal issues around COVID-19 and the measures to contain it. Fortunately, because the Pfizer and Moderna vaccines are emergency use products, and as such, not fully licensed, the law is clear: States may not mandate the vaccines, and private entities do so at the peril of violating federal law.