The National Council on Teacher Quality advocates for reforms in a broad range of teacher policies at the federal, state and local levels in order to increase the number of effective teachers. In particular, we recognize the absence of much of the evidence necessary to make a compelling case for change and seek to fill that void with a research agenda that has direct and practical implications for policy. We are committed to lending transparency and increasing public awareness about the four sets of institutions that have the greatest impact on teacher quality: states, teacher preparation programs, school districts, and teachers unions.