With the 2020-21 school year well under way, states and districts already made the call about whether and how their school buildings would reopen. But as communities continue to struggle with the ebb and flow of COVID-19, many states and districts will likely need to revisit their decisions, with some reverting to distance learning in order to keep students and faculty safe and others resuming in-person learning. This policy update outlines ways in which states such as Arizona, Illinois, Kansas, Minnesota, Oregon, and Nebraska offer state guidance on reopening criteria.