evidence: In June 2021, the initial EUA status of the vaccines led to challenges as to whether such mandates were legal,[17] as FDA regulations state that a person must be informed "of the option to accept or refuse administration of the product, of the consequences, if any, of refusing administration of the product, and of the alternatives to the product that are available and of their benefits and risks". As these regulations refer to an "option to accept or refuse", some opponents of vaccination initially questioned whether a vaccine issued under EUA can be mandated as a vaccination policy.[18][19] However, courts addressing the issue uniformly held that such mandates were permissible, with the court in Klaassen v. Indiana University in particular addressing this subject at length.