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 your action under this section results in the postponement of a passenger's travel, you must permit the passenger to travel at a later time (up to 90 days from the date of the postponed travel) at the fare that would have applied to the passenger's originally scheduled trip without penalty or, at the passenger's discretion, provide a refund for any unused flights, including return flights.