Aerobic Granular Sludge (AGS) technology operates on an optimized batch cycle structure that creates the proper conditions to develop and maintain granules: large, dense microbial aggregates displaying as particles greater than 200 microns in diameter that perform biological nutrient removal and display exemplary settleability relative to conventional activated sludge (CAS). The layered microbial community of these granules enables simultaneous nitrification/denitrification and enhanced biological phosphorus removal to occur within the granular biomass. This technology therefore eliminates the need for clarifiers, carrier media, and return sludge pumping stations, as well as selectors or separate compartments for plants looking to achieve BNR. The enhanced settling properties allow the system to operate at a high MLSS in excess of 8 g/L without a loss in aeration efficiency due to the granular nature of the sludge. The AGS process can therefore provide a significant reduction in footprint requirements and energy demand compared to a conventional technology. The AGS process has been implemented successfully for the past 19 years with about 120 plants either in operation or under construction globally. Introduced to the North American market in 2017, there are now 9 plants operating and another 10 under construction in the United States. Five of these plants are scheduled to begin startup in 2025. This session will examine several of these plants, including the circumstances that led them to adopt AGS technology, and the performance of the operating plants since startup. It will also include a general summary of AGS, its operating principles, and a history of its development and implementation in North America and worldwide.