This report describes the inclusion of students with disabilities in state assessment that is part of the No Child Left Behind Act (NCLB) accountability system. It is specifically directed to charter schools and includes information about the basic statutory and regulatory requirements for general and alternate types of assessments and their use for certain students with disabilities. The first section of this article provides an overview of the major assessment requirements of both IDEA and NCLB. Excerpts from the laws and regulations that are most relevant to the issues discussed in this report are quoted in Appendices A and B. It is important for the reader to understand that this report does not address assessment that is part of an evaluation to determine eligibility for special education services. Rather, it is focused on assessment that is part of mandated state and district academic accountability systems. After a summary of the basic statutory and regulatory requirements, this report focuses on general and alternate types of assessments and their use for certain students with disabilities. Appended are: (1) Assessment Provisions in the IDEA 2004 Law; and (2) Selected Assessment Provisions of the NCLB Regulations. (Contains 9 footnotes.) [This resource was produced by the TA Customizer Project.]