The goal of the American Cities Climate Challenge Justice40 Capacity Building Fund (J40 Fund), was to support community-based organizations to engage and partner with their local government to advance community-led projects that align with the Justice40 Initiative. This initiative aims to deliver 40% of the overall benefits of federal investment in areas such as clean energy and climate preparedness to disadvantaged communities. The Fund intends to help communities scope, plan, and pursue partnership strategies in order to more effectively work with local government partners to achieve these shared goals. This fund is open to projects across the United States, and not limited to Climate Challenge cities, in order to extend the opportunity for learning and sharing of new ideas across communities.