According to NBC 10, the Centers for Disease Control and Prevention is developing guidance that will ease the nationwide mask mandate for public transit next month, according to a U.S. official, but the existing face covering requirement will be extended through April 18. The requirement, which is enforced by the Transportation Security Administration, had been set to expire on March 18, but was extended by a month to allow the Public Health Agency time to develop new, more targeted policies. The requirement extends to planes, buses, trains and  transit hubs.

The CDC is developing a "revised policy framework" for when masks should be required on transit systems based on its newly released "COVID-19 community levels" metric.