How do school boards and districts better use research and data to inform policy decisions? This report describes how one mid-sized urban district in the Northeast & Islands Region formulated and implemented a new discipline policy using data and research. The district examined a national report on districtwide suspension rates, conducted a detailed analysis of internal data, compared suspension rates with those of other urban districts, and consulted research on the relationship between out-of-school suspensions and academic outcomes. A 50-person task force used the research and data to draft a new discipline policy. The new policy clearly communicates expectations for student conduct and guides district staff on how to address various discipline infractions uniformly across the district.