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This document is part of a series of standards for a system known as JPEG Pleno. This Part in that series defines the JPEG Pleno framework for learning-based point cloud coding. The scope of the JPEG Pleno Point Cloud activity is the creation of a learning-based coding standard for point clouds and associated attributes, offering a single-stream, compact compressed domain representation, supporting advanced flexible data access functionalities. This standard targets both interactive human visualization, with competitive compression efficiency compared to state of the art point cloud coding solutions in common use, and effective performance for 3D processing and machine-related computer vision tasks, and has the goal of supporting a royalty-free baseline. This document specifies a coded codestream format for storage of point clouds. This document also provides information on the encoding tools. The document also defines extensions to the JPEG Pleno File Format and associated metadata descriptors that are specific to point cloud modalities.