For the past four years, the Center on Education Policy (CEP), an independent nonprofit research and advocacy organization, has been conducting a comprehensive and continuous review of NCLB, producing the annual reports contained in the series "From the Capital to the Classroom" as well as numerous papers on specific issues related to the law. Each year, the CEP gathers information for this review by surveying officials in all the state departments of education, administering a questionnaire to a nationally representative sample of school districts, conducting case studies of individual school districts and schools, and generally monitoring the implementation of this important national policy. Ten major effects of NCLB on American education are evident from this multi-year review and analysis. In this article, the authors present and describe these effects broadly to assess the overall influence of this policy on public schools. The authors further state that NCLB is clearly having a major impact on American public education, yet some provisions of the Act and of its administration are causing persistent problems.