The decision to close schools in March 2020 was a massive disruption to public education. But pandemic-related closures did more than put in-person instruction on hold. School closures also meant that teacher candidates could not complete their student teaching experiences. Three years later, the negative consequences of school closures for students are well known: learning declined and pre-existing inequities grew. But how (if at all) changes to licensure requirements affected teachers and students is less clear. To provide an initial picture of what happened, this research brief describes the nature of pandemic-era licensure modifications, how many teachers they might have affected, and why we should care. The rough estimate suggests that around 100,000 graduates of traditional preparation programs might have entered the profession under changed licensure rules in 2020-2021. Most of these teachers likely would have entered the teacher workforce, regardless of the changes to licensure rules. Still, under normal circumstances, some of them might have failed their licensure test or balked at the costs of entering the profession; virtually all of them would, absent the changes, have completed student teaching before being hired.