In 2014, OSEP instituted the Statewide Systemic Improvement Plan (SSIP) reporting requirement. The SSIP was designed as a comprehensive multi-year plan for improving results for infants and toddlers with disabilities and their families through system strengthening efforts. States/entities work to improve their infrastructure, implement evidence-based practices, and measure their progress. Since SSIP's inception, ECTA and DaSy have collaborated to provide technical assistance (TA) to support states with the SSIP requirements. This impact story spotlights two states, Idaho and Washington, that used TA to scale implementation of their SSIP practices statewide, making noteworthy progress in their systems to improve child outcomes.