edCount is collaborating with lead state, Nebraska, and two other states (Montana, and Wyoming) and three partner organizations (ACS Ventures, SRI International, and PIRE, Inc.) on the Strengthening Claims-based Interpretations and Uses of Local and Large–scale Science Assessment Scores (SCILLSS) project, one of two recently funded Enhanced Assessment Grants (EAG). This project will develop a comprehensive assessment approach that clarifies and strengthens the connection between statewide assessments, local assessments, and classroom instruction. Through the SCILLSS project, we are developing tools and resources that focus efforts on restructuring and re-engineering both large-scale and local science assessments to ensure standards alignment, support system coherence, and to yield scores with more meaningful information. This project will have cross-state applicability and generalizability beyond the states engaged in the project. Key facets, including tools and resources, of the state-specific work completed through this project will be adaptable to other states’ contexts and sustainable beyond the life of the project. These tools and resources will be available on the SCILLSS website going live in late Fall, 2017.