Part of IDEA funding for preschool students ages 3 to 5.The Preschool Grants program provides formula grants to states, the District of Columbia, and Puerto Rico to make available special education and related services for children with disabilities aged 3 through 5. In order to be eligible for these grants, States must serve all eligible children with disabilities aged 3 through 5 and have an approved application under Part B of the Individuals with Disabilities Education Act (IDEA). A state that does not make a free appropriate public education (FAPE) available to all children with disabilities aged 3 through 5 cannot receive funds under this program or funds attributable to this age range under the Grants to States program. Currently, all states are making FAPE available to all children aged 3 through 5 with disabilities. At their discretion, states may include preschool-aged children who are experiencing developmental delays, as defined by the state and as measured by appropriate diagnostic instruments and procedures, who need special education and related services. If consistent with state policy, state and local educational agencies also may use funds received under this program to provide FAPE to 2-year olds with disabilities who will turn 3 during the school year. IDEA requires that, to the maximum extent appropriate, children with disabilities are educated with children who are not disabled and that removal of children with disabilities from the regular educational environment occurs only when the nature or severity of the disability of a child is such that education in regular classes, with the use of supplementary aids and services, cannot be achieve satisfactorily. However, states are not required to provide public preschool programs for the general population. For this reason, preschool-aged children with disabilities are served in a variety of settings, including public or private preschool programs, regular kindergarten, Head Start programs, and childcare facilities.