How can public health practitioners, policymakers, and community partners better understand and apply public health legal authority in ways that prioritize effectiveness, fairness, and accountability to community priorities? Our new resource, Public Health Legal Authority for Good, is an actionable collection of laws and policies from a range of U.S. jurisdictions, all related to establishing and exercising local and state public health authority effectively and fairly. This resource includes links to research supporting the use of these legal strategies to improve public health, based on the efforts of the Act for Public Health initiative.