As it becomes more difficult to advance health policy at the national level, health advocates and funders are working to advance health policies through local jurisdictions. This brings unique challenges for evaluators to understand the success of advancing national policy agendas at the local level. Presenters will explore how a policy spectrum framework has been used to promote learning and understand the impact of the CityHealth, an initiative of the de Beaumont Foundation and Kaiser Permanente, which aims to advance policies addressing social determinants of health in the 40 largest cities in the U.S. Hear from the CityHealth evaluation team and the de Beaumont Foundation about how the policy spectrum has been used to understand progress and strengthen the initiative as it works to advance its menu of health policies in cities nationwide. Participants will leave with a solid understanding of how to apply the policy spectrum to their work.