As those most directly impacted by the systems and issues described in this document, it is critical that girls and gender-expansive young people lead all efforts to transform our public systems, truly centering their experiences in such efforts. Systemic reform must be rooted in an awareness of the complexity of their intersecting identities — including race, gender identity, sexual orientation, ability, and others — to ensure we address the deepest levels of systemic marginalization, which in turn improves outcomes for all youth. The Girls @ the Margin National Alliance Steering Committee offers this policy platform as a place to begin reimagining an effective ecosystem of supports for girls and gender-expansive young people.