Under Part H of the Individuals with Disabilities Education Act (IDEA), disputes can and do arise between parents and early intervention service providers and program administrators, between early intervention professionals from different disciplines, and between agencies at the state and local level that provide and finance early intervention services. This article describes the use of a model of negotiation—the problem solving negotiation model—to resolve disputes arising under Part H. The article then describes the need for formal education and training in problem-solving negotiation in early intervention systems.