The Building Community Resilience (BCR) initiative is promoting resilience through cross-sector partnerships that foster community collaboration to address, prevent, and reduce the effects of Adverse Childhood Experiences (ACEs) and Adverse Community Environments (ACEs)—or the Pair of ACEs- on child health and wellbeing. This presentation will outline the approach which is bringing together organizations that impact children’s health, such as health departments, city leaders, health systems, social services, and community-based organizations to develop and strengthen community resilience in Cincinnati (OH), Portland (OR), Dallas (TX), Washington (DC) and Wilmington (DE). In these sites, the BCR tools and framework paired with the use of the National Association of City and County Health Officials (NACCHO) have led to partnerships between health care, public health, education, community developers and government offices to improve community conditions and coordinate services across multiple community providers. This presentation will demonstrate the communications tools and strategic planning process that have helped the sites create networks that total more than 200 cross-sector partners across five cities serving more than two million children and families. Analysis of these efforts found that the tools are most effective in helping BCR partners identify redundancies and gaps in services (asset mapping), identify key partners to join the BCR effort, create strategic plans for action and develop strategies to effectively communicate the public health implications of the Pair of ACEs and practice and policy changes necessary for prevention.