A federal regulatory agency is approaching the deadline to decide whether masks should be required at workplaces in the United States, in response to an executive order by President Biden. On January 21, President Joe Biden's first full day in office, he signed an executive order that asked OSHA to consider if any new emergency temporary standards are needed to protect workers from Covid-19. That could include masks in workplaces, if necessary, the order said -- and such standards would need to be issued by March 15.