Mr. Biden has vowed to use his powers as president to influence mask wearing wherever he is legally allowed to, including on federal property and in travel that crosses state lines. An order issued Thursday requires mask wearing in airports and on many airplanes, intercity buses and trains.
The same order also requires international travelers to prove they have a recent negative coronavirus test before heading to the United States and to comply with quarantining guidelines issued by the Centers for Disease Control and Prevention once they land.
One order calls on the health and human services secretary and the White House’s Covid-19 response coordinator to re-evaluate the federal government’s Covid-19 data-gathering systems and issue a report on their findings. It also calls on the heads of “all executive departments and agencies” to gather and share coronavirus-related data.
The Trump administration struggled last year to settle on a centralized system, pitting competing programs at the Department of Health and Human Services and the C.D.C. against one another. Alex M. Azar II, the former health and human services secretary, ordered hospitals to send daily reports about virus cases to a private vendor that transmitted them to a central database in Washington, instead of the C.D.C., which had previously housed the data. The decision, which remains in effect, angered C.D.C. scientists.