Blueprints for Reform is a summation of reports offering teachers, parents, policymakers, business leaders, and others a starting point for their exploration of the education system and its response to reform. This chapter looks at how student assessment in American schools might be redesigned to match the goals of science education reform put forth in that are exemplified in efforts such as Project 2061’s Benchmarks for Science Literacy. It is divided into three sections that describe current assessment practice in the United States, suggest changes that are needed in order for science reform goals to be implemented, and explore possibilities and recommendations for closing the gap between current practice and a more ideal vision of science assessment.