To support the educational needs of children with disabilities, Congress originally enacted IDEA in 1975. Part B of IDEA authorizes federal funding for children aged 3 through 21 with a range of disabilities who need special education services. To receive federal funds, states and local education agencies must identify and evaluate children who have disabilities and provide special education and related services, as well as supplementary aids and services when necessary, to those who are eligible. Such services and supports are formulated in an IEP, which is developed, discussed, and documented by a student's IEP team.