BRTSim is subject to authorship and therefore copyright. You can use it under the Attribution 4.0 International (CC BY 4.0), meaning that you can copy and redistribute BRTSim in any medium and format but we do not recommend you change, modify or adapt the distributed executables. In any of these instances, you must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.