Air Carrier Access Act Technical Assistance Manual (2005)

You must provide transportation to an individual with a disability who has an impairment that affects his or her appearance or results in involuntary behavior except under limited circumstances specified below. You must provide transportation to such individuals with disabilities even if the disability may offend, annoy, or inconvenience crewmembers or other passengers. [Sec. 382.31(b)] However, if the person’s disability results in involuntary behavior that would or might be inimical to the safety of the flight, then the person may properly be refused transportation. [Sec. 382.31(d)]