This booklet reviews the literature and considers applications of Public Law 99-457 (Education of the Handicapped Act Amendments--1986) in developing programs for young children with behavior disorders. The following topics are considered: provisions of the law (states are required to provide a free, appropriate public education to all eligible children, ages 3 to 5, by 1991); intervention services (the law encourages efforts focused on collaboration, prevention, and family-centered services); public awareness campaigns (parents need to be alerted to program availability); developmental therapy (a curriculum model based on the child's current level of performance and behavior rather than chronological age); the engineered or orchestrated classroom (a model focused on creating a"harmonious learning climate"); the psychoeducational model (the security and comfort of a predictable structure and schedule are central); behavior modification (interventions are based on positive reinforcement, timeout, and natural consequences); social skills development (direct instruction is usually most effective with this population); focus on family (family strengths and needs are addressed rather than child deficits); teacher training and professional resources (both general and special educators need more information about behavioral disabilities, strategies that work, and ways of collaborating). Includes 42 references. (DB)