(a) As a carrier, you must ensure that aircraft with more than one aisle in which lavatories are provided shall include at least one accessible lavatory.

(1) The accessible lavatory must permit a qualified individual with a disability to enter, maneuver within as necessary to use all lavatory facilities, and leave, by means of the aircraft's on-board wheelchair.

(2) The accessible lavatory must afford privacy to persons using the on-board wheelchair equivalent to that afforded ambulatory users.

(3) The lavatory shall provide door locks, accessible call buttons, grab bars, faucets and other controls, and dispensers usable by qualified individuals with a disability, including wheelchair users and persons with manual impairments.

(b) With respect to aircraft with only one aisle in which lavatories are provided, you may, but are not required to, provide an accessible lavatory.

(c) You are not required to retrofit cabin interiors of existing aircraft to comply with the requirements of this section. However, if you replace a lavatory on an aircraft with more than one aisle, you must replace it with an accessible lavatory.

(d) As a foreign carrier, you must comply with the requirements of paragraph (a) of this section with respect to new aircraft you operate that were initially ordered after May 13, 2009 or which are delivered after May 13, 2010. As a U.S. carrier, this requirement applies to you with respect to new aircraft you operate that were initially ordered after April 5, 1990, or which were delivered after April 5, 1992.

(e) As a foreign carrier, you must comply with the requirements of paragraph (c) of this section beginning May 13, 2009. As a U.S. carrier, these requirements apply to you with respect to new aircraft you operate that were initially ordered after April 5, 1990, or which were delivered after April 5, 1992.