State law addresses hearing screening.
Illinois Administrative Code 77-675.110 Frequency of Screening
b) Hearing screening services shall be provided annually for all school age children who are in grades K (kindergarten), 1, 2, and 3; are in any special education class; have been referred by a teacher; or are transfer students. These screening services shall be provided in all public, private, and parochial schools. Hearing screening is recommended in grades 4, 6, 8, 10, and 12.