This guidebook was developed to assist Wisconsin parents, educators, and other professionals who deal with young children in the early identification of hearing problems. Section 1 provides an overview of the topic and discusses the importance of early identification and treatment of hearing problems. Section 2 examines state and federal laws, regulations, and programs that require, facilitate, or encourage the identification of hearing loss in infants, toddlers, and children. Section 3 addresses significant hearing screening issues and the elements of an effective screening program. Section 4 provides descriptions of specific screening tests, test protocols, and referral guidelines. Section 5 discusses the problem of unresponsive children and children who are difficult to screen, outlining strategies to include these children in screening programs. It also summarizes the main themes of the guide. Section 6 consists of five appendixes, providing copies of an American Speech-Language-Hearing Association statement on infant hearing, a list of resources for parents and caregivers, a sample home conditioning program, a glossary, and a list of relevant materials. (MDM)