49 CFR 37.165 - Lift and securement use.
(a) This section applies to public and private entities.
(1) With respect to wheelchair/occupant combinations that are larger or heavier than those to which the design standards for vehicles and equipment of 49 CFR part 38 refer, the entity must carry the wheelchair and occupant if the lift and vehicle can accommodate the wheelchair and occupant. The entity may decline to carry a wheelchair/occupant if the combined weight exceeds that of the lift specifications or if carriage of the wheelchair is demonstrated to be inconsistent with legitimate safety requirements.
(3) The entity may require that an individual permit his or her wheelchair to be secured.
(f) Where necessary or upon request, the entity's personnel shall assist individuals with disabilities with the use of securement systems, ramps and lifts. If it is necessary for the personnel to leave their seats to provide this assistance, they shall do so.
(g) The entity shall permit individuals with disabilities who do not use wheelchairs, including standees, to use a vehicle's lift or ramp to enter the vehicle. Provided, that an entity is not required to permit such individuals to use a lift Model 141 manufactured by EEC, Inc. If the entity chooses not to allow such individuals to use such a lift, it shall clearly notify consumers of this fact by signage on the exterior of the vehicle (adjacent to and of equivalent size with the accessibility symbol).