Although schools have made great strides educating students with disabilities in mainstreamed academic classrooms, some advocates and physical educators say sports programs and physical education classes are the final frontier for full inclusion in public schools. In the past few years, advocates for such students have been demanding greater inclusion of students with disabilities in sports. The Government Accountability Office (GAO), the investigative arm of Congress, is conducting a report on the issue, and a state law in Maryland that creates more accountability for schools on how they provide athletic opportunities to those students could become a model for other states, or even federal legislation, advocates say. Federal law prohibits discrimination against students on the basis of disability, but a lack of guidelines, standards, and regulations on how schools should provide equal physical education and athletic opportunities leaves schools struggling to figure out how to make it happen. The GAO is assessing athletic opportunities for students with disabilities in physical education classes and extracurricular activities, and will determine the U.S. Department of Education's role in helping states and schools provide those opportunities. Its report is scheduled to be released in late June. Katherine Beh Neas, the vice president of government relations for Easter Seals, a Chicago-based advocacy group for people with disabilities and their families, hopes the report will give parents ammunition as they take on school officials about providing greater opportunities.