Ill. Admin. Code tit. 77, § 661.600
d) If there is no hearing screening result, or if an infant does not pass a hearing screening in both ears at the same time, then the medical care facility shall refer the infant's parents or legal guardians to a health care practitioner or pediatric audiologist for follow-up, and document and report the referral, including the name of the health care practitioner or pediatric audiologist, to the Department (Section 5(b) of the EHDI Act). If a newborn or infant does not pass either ear prior to discharge, the medical care facility shall: