(a) Control Location--The controls for deploying, lowering, raising and stowing the lift and moving the barrier shall be capable of being installed at a location, either interior or exterior, where the bus driver or lift attendant has a full view of the lift platform, its entrance and exit, and the wheelchair passenger, directly or with partial assistance of mirrors. Lifts entirely to the rear of the driver's seat shall not be operable from the driver's seat but shall have an override control at the driver's position that can be set to prevent the lift from being operated by the other controls (except for emergency manual operation after power failure).

(b) Width and Depth of Lift Assembly--The lift shall be designed so that it is capable of being installed with no part of the assembly when stowed extending laterally beyond the normal side contour of the bus nor vertically below the lowest part of the rim of the wheel closest to the lift.

(c) Gaps--Gaps in the platform in areas over which a wheelchair can roll shall not be greater than 15 mm (0.60 in.) horizontally or greater than 6 mm (0.24 in.) vertically.

(d) Accessibility--All items requiring inspection or maintenance shall be readily accessible. Covers and access doors are permitted.

(e) Instructions--The lift manufacturer shall supply the user with detailed instructions for installing the lifts and recommended inspection and maintenance schedules and procedures. The manufacturer shall supply operating instructions with each lift sold so the instructions may be carried in the bus.