In partnership with the National Charter School Resource Center (NCSRC), the National Association for Charter School Authorizers (NACSA) has been conducting authorizer assessments over the past six years. However, the correlation between high-quality authorization practices and charter school impact has largely been unexplored. This report uses a dataset of 43 NACSA-evaluated charter school authorizers to analyze the current state of authorizing policies and practices. While this sample of 43 authorizers represents only 4% of all charter school authorizers, these authorizers oversee 35% of all charter schools, and the schools they authorize serve 44% of all charter school students, based on 2013-2014 data. The charter school authorizers from the sample are in 28 states and represent two-thirds of states with charter school laws. They have been in operation for an average of 11 years. In general, the evaluation sample is comprised of large authorizers (defined as authorizers that oversee 10 or more charter schools), as NACSA has prioritized larger authorizers. The formative evaluations conducted by NACSA included the following focus areas: (1) Application and Decision-Making; (2) Monitoring and Operations; (3) Performance-Based Accountability; (4) School Autonomy; and (5) Organizational Capacity. NACSA used a Likert rating scale to report the authorizer's policies and practices, as compared to NACSA's Principles and Standards for Quality Charter School Authorizing. Quantitative analysis revealed clear model authorizer practices and areas for improvement and growth. This report can serve as a starting point to inform authorizers, policymakers, and key stakeholders in the charter school sector about effective authorizing practices.