The Air Traffic Management Exploration (ATM-X) Test Bed team will be training Test Bed users at an upcoming session at NASA Langley Research Center. Training participants will include researchers and software developers from NASA Langley, Glenn, and Ames Research Centers. The ATM-X Test Bed is being developed to address simulation and testing needs for airspace operations research and development. The Test Bed provides a sophisticated simulation and evaluation capability to test potential National Airspace System tools, procedures, and concepts. Researchers and developers can create repeatable, consistent air transportation scenarios and use a mix of live and virtual simulation assets during evaluation. This training session is the fourth in a series of training sessions for users in government, industry, and academia. Since September 2018, the team has trained participants from NASA’s Urban Air Mobility (UAM) subproject, Convergent Aeronautics Solutions project, System Wide Safety project, Uber, General Electric, Honeywell, and ATAC. The team is also exploring recording the training for the use by future audiences. (POC: Kee Palopo)