The Individuals with Disabilities Education Act (IDEA) of 1990 and 1997 is the federal law that addresses intervention services for children. The section of the law covering children from birth through age 2 was called Part H of IDEA. Each state passes its own additional law and writes rules to be followed in carrying out federal law. This state law brings together services from the departments of education, health, and human services. Because the three agencies are working together in a coordinated way, families have easier access to services.