The NOAA GOES-R program has been developing and successfully testing GOES-R retrieval methodologies and algorithms via the GOES-R Proving Ground for several years. NOAA's Joint Polar Satellite System (JPSS) Program will join the Proving Ground and it will be known as the NOAA Satellite Proving Ground. JPSS's initial focus will be on reaching out to users to receive critical feedback on the impact of NPOESS Preparatory Project (NPP) and JPSS products. On the Numerical Weather Prediction model side, we will be working with the Joint Center for Satellite Data Assimilation supported by Naval Research Laboratory (NRL) – Monterey to investigate the effect of NPP sounder data on the models. For field users, we will be working with the National Weather Service offices in Alaska where they depend on polar environmental satellite data for their aviation and maritime forecasts. We will also be working with NASA's Short-term Prediction Research and Transition Center (SPoRT) and NRL Monterey's Next-Generation Weather Satellite Demonstration Project (NexSat) both of which build satellite products based on simulated next generation instrument data and will develop new products based on the NPP imager and sounding data.