Public Law 94-142 - Federal law which requires that a child be educated according to "assessed needs". This means that an assessment must be conducted in a timely fashion, the parents must be included in the decision making process, and that the plan for correction of problems found (if any) must be documented in writing and implemented promptly.
504 - allows modification of traditional programs to meet special needs
ADA- Americans with Disabilities Act, provides reasonable accommodation to special needs and includes ADHD as one of the qualifying criteria