; (B) establish effective procedures for providing necessary early intervening services to children with disabilities prior to an eligibility determination by the State or local agency responsible for providing services under section 619 or part C of the Individuals with Disabilities Education Act ( 20 U.S.C. 1419 and 1431 et seq.); (C) establish effective procedures for timely referral of children with disabilities to the State or local agency described in subparagraph (B); (D) ensure that the eligible local entity’s high-quality prekindergarten program works with appropriate entities to address the elimination of barriers to immediate and continuous enrollment for homeless children; and (E) ensure access to and continuity of enrollment in high-quality prekindergarten programs for migratory children, if applicable, and homeless children, including through policies and procedures that require— (i) outreach to identify migratory children and homeless children; (ii) immediate enrollment, including enrollment during the period of time when documents typically required for enrollment, including health and immunization records, proof of eligibility, and other documents, are obtained; (iii) continuous enrollment and participation in the same high-quality prekindergarten program for a child, even if the child moves out of the program’s service area, if that enrollment and participation are in the child’s best interest, including by providing transportation when necessary; (iv) professional development for high-quality prekindergarten program staff regarding migratory children and homelessness among families with young children