35 percent of adults with disabilities, and only 25 percent of adults with cognitive disabilities, are working (according to the American Community Survey). (5) Schools and State systems should have knowledge and expertise in the range of evidence-based strategies that are particularly effective for employment of students with disabilities, including customized employment, the Individual Plan and Support model, and supported employment. 3. Demonstration grant program for individuals with certain disabilities Section 303 of the Rehabilitation Act of 1973 ( 29 U.S.C. 773 ) is amended— (1) by redesignating subsections (c) through (e) as subsections (d) through (f), respectively