This report synthesizes findings from extant empirical research to identify nine key policy areas that state policymakers and stakeholders in California can leverage to improve English learners' (ELs') opportunities and outcomes across the state. Importantly, the report situates these policy areas within the current framework of California state policy, both recognizing major steps that the state has taken with regard to EL policy, and identifying leverage points from which to push the state forward. Specifically, the report tackles two questions: (1) What does research suggest are pressing policy areas regarding EL education in California? and (2) For each policy area, what is the status of California policy and law and what additional state actions does the research base suggest might support improved student experiences and outcomes? Each of the nine policy area sections in the report summarizes the policy-relevant research base in that area, synthesizes key implications of the research base for state-level policy, and discusses current California policy in that area and highlights possible areas for policy advancement.