We conducted a systematic documentary content analysis of state laws and state education agency (SEA) disciplinary guidance from all 50 states in the United States. We focused on zero tolerance policies, mandates for review of disproportionality in discipline data, the utilization of school resource officers in discipline, corporal punishment, and prevention. Knowledge of practices throughout the United States is critical for school psychologists to advocate for socially just disciplinary practices and reform. Most state laws require zero tolerance practices for weapons and drug related offenses, yet very few mandate zero tolerance for minor offenses such as insubordination or disrespect. Only nine states require SEAs to review data for disproportionality or require school districts to remedy disproportionality when it is present. Eleven states allow for school resource officers to be involved in discipline outside of high-level safety concerns. Additionally, 23 states still allow corporal punishment in schools. Many states offer guidance to districts on the implementation of multitiered systems of support (MTSS), positive behavioral interventions and supports (PBIS), restorative practices, progressive discipline, and classroom-based interventions. Implications for school psychologists advocating for disciplinary reform at the local, state, and national level will be discussed. Impact Statement The researchers conducted a systematic national content analysis of school discipline laws and SEA guidance documents. We hope that the findings about school disciplinary laws and SEA guidance in each state will assist school psychologists in targeting their advocacy and reform efforts for more equitable and proactive disciplinary practices at the local, state, and national level.