The delivery of physical therapy and occupational therapy in schools hinges, and accurate understanding of educational and civil rights laws that mandate services to children with disabilities in educational environments. Physical therapy and occupational therapy are included among the long list of related services in the Individuals with Disabilities Education Act of 1990 that may be required "to assist a child with a disability to benefit from special education". The provision of therapy services is included in federal education statutes and described briefly in accompanying federal regulations. Statutes are legislative acts and regulations are the guidelines established by governmental agencies to carry out the laws or statutes. Therapists must be concerned with providing services in the least restrictive environment and with supporting a child's special education program and learning environment. The transdisciplinary approach involving a variety of professionals from various disciplines can be particularly effective for the evaluation, acquisition, and use of assistive technology devices in schools.