The Centers for Disease Control and Prevention’s (CDC) latest order, requiring individuals to wear masks when using public transportation or residing in transportation hubs, will be “further enforced by other federal authorities,” the agency announced in its order, which went into effect this week. Under the order, individuals are required to wear masks while using public transportation, which includes “awaiting, boarding, disembarking, or traveling on airplanes, ships, ferries, trains, subways, buses, taxis, and ride-shares as they are traveling into, within, or out of the United States and U.S. territories,” per the CDC.