Teacher evaluations can be used by states and districts to support and develop an exceptional workforce. Accurate evaluations based on quality data can help differentiate teacher performance, inform feedback, improve professional development, provide opportunities for pay increases and advancement, and provide rationale for teacher dismissals. Yet many states, districts, and schools struggle to create and implement the type of trusted evaluation system that meaningfully differentiates teacher performance and provides teachers with opportunities for tailored support, development, and advancement. The Every Student Succeeds Act (ESSA) provides new flexibility to states to revise and reform their teacher evaluation systems. Federal incentives to create prescribed evaluation systems have been removed and states now have full discretion over whether and how to evaluate teachers. However, ESSA still requires states demonstrate that they are working to provide disadvantaged students equal access to effective teachers. If federal funds are appropriated to ESSA Title II, Part A, states can use those dollars to support and improve their teacher evaluation systems. This Policy Snapshot explores recent legislation related to teacher evaluations, including trends and the use of student growth. A list of resources is included.