Published 4 hours ago • Updated 4 hours ago NBC 5 News The Transportation Security Administration has extended the face mask requirement for all transportation networks, including public transportation, through September 13, 2021. Dallas Area Rapid Transit said it will continue to require CDC approved face masks be worn over the mouth and nose by passengers and operators at all times while on DART vehicles or properties. Download our NBC DFW mobile app for Apple or Android to get alerts for local breaking news and weather. These DART vehicles and properties include buses, trains and paratransit vehicles, Trinity Railway Express trains, at DART stations, on platforms, in buildings and on-board the Dallas Streetcar, DART said.