Disproportionality in exclusionary school discipline is a longstanding challenge in general and special education. To reduce disproportionality in discipline in a way that produces measurable results, federal law provides a mechanism referred to as Coordinated Early Intervening Services (CEIS). Whether a school district has been cited for significant disproportionality, is out of compliance, or is voluntarily directing funds to reducing disproportionality in discipline, this brief provides background on CEIS and outlines best practices for how state, district, and building administrators can invest these funds most effectively to achieve equity in school discipline.