This report reviews literature pertaining to testing accommodations for students with disabilities. It draws on such information as empirical studies conducted by the Educational Testing Service and the American College Testing Program as well as policies for state assessment programs. The report addresses policy and legal considerations, technical concerns, minimum competency and certification/licensure testing efforts, existing standards, and accommodations allowed in state assessment systems. A concluding section summarizes various concerns, among them that there has been relatively little empirical research on testing accommodations for students with disabilities and that there currently exists little consistency in assessment policy. Appendixes contain guidelines on inclusion/exclusion criteria from 29 individual states and guidelines on testing accommodations from 21 states. (Contains 49 references.) (Author/JDD)