Lap Belt LengthTS 40.3 Adjustable ArmrestTS 40.4 Seat Control LocationsWhile seated, the driver shall be able to make seat adjustments by hand without complexity, excessive effort orbeing pinched. Adjustment mechanisms shall hold the adjustments and shall not be subject to inadvertent changes.TS 40.5 Seat Structure and MaterialsCushionsCushions shall be fully padded with at least 3 in. of materials in the seating areas at the bottom and back.Cushion MaterialsLap and Shoulder (Three-Point) Seat BeltALTERNATIVE72 in. with ExtensionThe lap belt assembly shall be 72 in. in length with an Sin. extension