14 CFR Part 382 Nondiscrimination on the Basis of Disability in Air Travel (Air Carrier Access Act) (with amendments issued through May 2016)

(d) If you refuse to provide transportation to a passenger on his or her originally-scheduled flight on a basis relating to the individual's disability, you must provide to the person a written statement of the reason for the refusal. This statement must include the specific basis for the carrier's opinion that the refusal meets the standards of paragraph (c) of this section or is otherwise specifically permitted by this part. You must provide this written statement to the person within 10 calendar days of the refusal of transportation.