890.3900 Standup wheelchair.§ 890.3900 Standup wheelchair.
(a) Identification. A standup wheelchair is a device with wheels that is intended for medical purposes to provide mobility to persons restricted to a sitting position. The device incorporates an external manually controlled mechanical system that is intended to raise a paraplegic to an upright position by means of an elevating seat.
(b) Classification. Class II (performance standards).