"The abbreviated timelines for the emergency use applications and authorizations means there is much the FDA does not know about these products even as it authorizes them for emergency use, including their effectiveness against asymptomatic infection, death, and transmission of SARS-CoV-2, the virus that causes the disease."
They are NOT FDA approved YET - peer reviews will not be complete until likely 20203
Employers can't require Covid-19 vaccination under an EUA - STAT
Organizations are free to encourage Covid-19 vaccination by employees and others, but federal law prohibits them from requiring it.
https://www.statnews.com/2021/02/23/federal-law-prohibits-employers-and-others-from-requiring-vaccination-with-a-covid-19-vaccine-distributed-under-an-eua/As if "FDA approved" ever meant anything of any significance per safety and well being of humans as "FDA approval" of innumerable highly toxic "food" additives proves .. the infamous poisonous sweetener aspertame for instance.