States, business sort out new mask guidance Heather Hollingsworth Associated Press and David C.L. Bauer Journal-Courier May 15, 2021 FacebookTwitterEmail More than a dozen states quickly embraced new federal guidelines that say fully vaccinated Americans no longer need to wear masks indoors or out in most cases. But other states and cities and some major businesses hesitated amid doubts about whether the approach is safe or even workable. As many business owners pointed out, there is no easy way to determine who has been vaccinated and who hasn’t. And the new guidelines, issued Thursday by the Centers for Disease Control and Prevention, essentially work on the honor system, leaving it up to people to do the right thing.