Air Carrier Access Act Technical Assistance Manual (2005)

If there is a closet or other approved stowage area for passengers’ carry-on items of sufficient size to accommodate a folding, collapsible, or break-down wheelchair, the carrier must designate priority stowage space for at least one wheelchair in that area. A passenger with a disability who takes advantage of the offer of the opportunity to pre-board may stow his or her wheelchair in this area with priority over other carry-on items brought onto the aircraft by other passengers and flight crew enplaning at the same airport. A passenger with a disability who does not pre-board may use this space to stow his or her wheelchair on a first-come, first-served basis along with other passengers stowing their carry-on items. [Sec. 382.41(e)(2)]