The assistant principal is the gatekeeper of student discipline and is the key to closing the disproportionate discipline gap between Black and White students. Assistant principals can help close the gap by engaging in Culturally Responsive School Leadership professional development that allows them to become self-aware of their implicit bias, utilize an intervention tool that can serve as a guardrail between their implicit bias and discretionary discipline decision-making, and engage in the practice of critical self-reflection. Black students will stand a chance to be heard in discipline conversations and receive more inclusive consequences, allowing them more seat-time to access their education. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]