Since 2007, AIR has provided comprehensive, ongoing MTSS professional learning opportunities to hundreds of school districts in nearly 40 states. From 2007-2012, AIR provided these services under the auspices of the National Center on Response to Intervention (NCRTI), funded by the U.S. Department of Education, Office of Special Education Programs. Since 2012, AIR has continued to provide high-quality trainings, embedded coaching, and formative and summative evaluation of systems, instruction, and student-level outcomes on response to intervention (RTI). Beginning in 2020, AIR shifted its terminology from RTI to MTSS , to align with evolving language and policies in the field. This change is reflected in the new Center name (Center on Multi-Tiered System of Supports), website URL, and email address. Additionally, AIR has adapted and added new content to the website and expanded its service offerings to reflect the full range of supports that comprise a comprehensive, integrated MTSS. The Center on MTSS strives to support educators in implementing tiered support systems that address students’ academic, behavioral, social, and emotional needs.

Do you have a question about the MTSS Center website or resources available on our website? Contact us at