Special Notice: Homeland Security, Department of, Transportation Security Administration is seeking concept paper submissions for potential On-Person Screening (OPS) advancements and improvements. OPS aims to improve current security operations and capabilities by addressing various Technical Topic Areas. The TSA is interested in development that will enhance Walk-Through Metallic and Non-Metallic Screening Systems Detection Algorithms, Synthetic Data Generation and/or Automated Data Annotation Tools, OPS Open Architecture Integration, and Wideband Technology that Enhances Currently Fielded Advanced Imaging Technology (AIT). Questions and concept paper submissions must be submitted by specific deadlines. For more details, refer to the attached BAA documents.