Individuals with ADHD or other disabilities are entitled to what’s known as a free and appropriate public education (referred to by the acronym FAPE), including special education services that are guaranteed by two federal laws: The Individuals with Disabilities Education Act (IDEA) and Section 504 of the Rehabilitation Act of 1973 (Section 504). Disability is very specifically defined in IDEA, and many teens with ADHD alone may not meet criteria; teens with comorbid conditions, however, such as autism or physical disabilities, may qualify under IDEA. Section 504 of the National Rehabilitation Act, on the other hand, defines disabilities more broadly. Often called "504 Eligibility," it qualifies children that have a diagnosed physical or mental impairment that substantially limits learning and requires special education or related services. Children who need assistance in certain areas may qualify for a 504 plan even if they do not need special education under IDEA.