This policy brief, produced by the Wisconsin Center for Education Research (WCER) at the University of Wisconsin-Madison as part of the Region 10 Comprehensive Center, is one in a series examining selected topics related to Wisconsin's educator workforce. The goal of this brief is to summarize key trends in the use of emergency credentials within Wisconsin's public schools in recent years, which is a topic of interest for at least two reasons. A first reason is that increased reliance by Wisconsin school districts on emergency credentials as a strategy for filling vacant positions would serve as a meaningful indicator that widely-reported shortages of educators are worsening. A second policy implication associated with emergency credentials is a potential equity issue. To the extent that emergency credentials are being used by some districts and schools more than others, particularly for teaching positions and by districts and schools with higher shares of traditionally marginalized students, state and local policymakers should question whether additional supports and resources may be necessary to ensure that all students have access to highly-qualified educators.