To address nationwide concerns about overtesting, Achieve developed the "Student Assessment Inventory for School Districts" (see ED603651) which can be used by education leaders to make decisions about the appropriate amount of testing and to be more transparent with parents about assessments in schools. Since its launch in 2014, the tool has been used by over 100 districts to evaluate their assessment strategy and ensure that only the best and most useful tests are used, impacting over [1 million] students. This brief report describes how districts in Washington state and Illinois have used the process.