Abstract: According to this report, the federal No Child Left Behind law has complicated the accountability relationship between charter schools and their authorizers as well as created new paperwork burdens by requiring charter schools to measure and report the same across-the-board indicators as all other public schools, no matter the terms of the original charter. At the same time, it largely adopts the high-stakes charter model as an accountability framework for all public schools and in fact, pays an additional compliment to the charter school movement by allowing districts to convert their low-performing schools into charters. This paper looks at how the federal No Child Left Behind Act has begun affecting the American charter school community, and points toward both the promising and worrisome signs on the horizon.