Early and Periodic Screening, Diagnosis and Treatment (EPSDT) is a program of preventive health services available to individuals under 21 years of age who are eligible for Medicaid benefits. As of July 1, 1973, all states operating a Medicaid program were required to provide EPSDT services to all those eligible. The purpose of this module is to assist states in their implementation of training programs for workers involved in the EPSDT program. The module includes step by step information designed to enable workers to understand their particular EPSDT program; to arouse their client's interest in the program; and to explain the program and how to enter it to their clients in effective terms. The worker studying the module is encouraged to test his or her own understanding by completing a series of feedback and self assessment exercises found after each self-teaching unit and at the end of the module. (GC)