The HDF Group presented on their support for the National Polar-orbiting Partnership/Joint Polar Satellite System (NPP/JPSS) program. Their goals included providing HDF5 support for distributing data from the Visible Infrared Imaging Radiometer Suite (VIIRS) and other sensors. They outlined priorities for testing software on critical platforms, developing tools to access and manage NPP/JPSS products, and providing rapid support. The presentation described software released or under development like h5edit, h5augjpss, and nagg, an aggregation tool.