What is a common enrollment system? Which cities are operating them, and are they successful? This brief explores how common enrollment systems can streamline the school choice process for both families and school districts, and provide a more equitable matching process between students and schools. The experiences and outcomes of two portfolio school districts that are currently using common enrollment—New Orleans and Denver—are discussed: with differing environments and regulations, each of these cities is using a customized solution to reach their common enrollment goals. This brief is part of a series of ‘Spotlights’ focusing on best practices around specific elements of the portfolio strategy. Read the related blog: Wait, Who Chooses My Kid’s School? by Betheny Gross