36Rear vision mirrors – surfaces

36 Rear vision mirrors – surfaces (1) A rear vision mirror required to be fitted to the side of a motor vehicle with a GVM over 3.5 tonnes must have a reflecting surface of at least 150 square centimetres. (2) A rear vision mirror required to be fitted to the right side of a motor vehicle with a GVM over 3.5 tonnes must have a flat reflecting surface if: (a) the motor vehicle has only 1 steering control; and (b) the centre of the steering control is to the right of, or in line with, the centre of the motor vehicle. (3) The reflecting surface of the rear vision mirrors that are required to be fitted to a motor bike or moped must: (a) each be of the same curvature; and (b) if convex, be part of a notional sphere with a radius of at least 1.2 metres.