This report analyzes the content of State regulations for determining student eligibility for services under the Individuals with Disabilities Education Act. The Federal law and regulations set a basic standard for the design and delivery of special education, and each State has adopted its own laws and regulations to supplement the Federal requirements. The Federal regulations analyzed are those with implications for the initial entry into special education, sometimes referred to as the "protection in evaluation" requirements that are applicable to the process of determining the presence of a disability. Analysis of State plans and regulatory documents revealed few differences between State and Federal regulations with respect to protection in evaluation requirements. Differences in the wording of State and Federal regulations can be characterized as more prescriptive on the part of the State, by including the types of assessments to be conducted, the specific individuals considered qualified to administer assessments, and the composition of the team designated to make the eligibility decision. The naming of assessment instruments to be used is not common among States, but 34 States do have additional assessment regulations based upon the category of disability. Two appendices provide a data summary and a list of State source documents. (JDD)