Disproportionality in disciplinary actions for certain racial groups has been well documented for several decades. In an effort to support all students, specifically those who are culturally and linguistically diverse (CLD), many have called for adopting a multi-tiered system of support framework that is considerate of student culture and school context. This framework applies to supporting students' learning and behavior across settings, particularly in the classroom. To bridge existing gaps between theory and practice, this empirical study sought to evaluate if teachers who self-assessed their own use of culturally and contextually relevant practices would implement a classwide behavior plan with high levels of implementation fidelity. Results indicated that teachers who engaged in self-assessment and training did implement the plan with high levels of implementation fidelity, particularly when given performance feedback. Additionally, students tended to display slightly higher rates of academic engagement upon consistent implementation of the plan. [This paper was published in "Psychology in the Schools" (EJ1169673).]