The Culturally and Linguistically Responsive (CLR)–Response to Intervention (RTI) Fidelity Rubric is used by individuals who are responsible for monitoring school-level fidelity of RTI implementation within a multi-tiered system of supports (MTSS). The rubric is aligned with the essential components of RTI and the infrastructure that is necessary for successful implementation. It is accompanied by a worksheet with guiding questions and score points for use in an interview with a school’s RTI leadership team. The rubric was adapted from the MTSS Fidelity of Implementation Rubric.