The groundwater sustainability plans that were submitted to the Department of Water Resources in January of 2020 were the first of the groundwater sustainability plans to be completed. Public review of these plans has revealed some important lessons to be learned to be considered for those preparing the plans that will be due in January of 2022. At the 3rd Annual Groundwater Sustainability Agency Summit hosted by the Groundwater Resources Association online in June, a panel of NGOs that had completed a review of the plans summarized their findings from the perspective of underrepresented beneficial users and with respect to stakeholder engagement, providing insights and recommendations for the upcoming plans.