National Road Traffic Act, 1996 (Act No. 93 of 1996)

Subject to the provisions of regulations 323(2)(d) and 327, the driver of a vehicle on a public road who intends to turn to the right or move to the right shall, before reaching the point at which he or she intends to turn or move to the right, extend his or her right arm and hand sideward from the shoulder and fully horizontal to the road with the palm of the hand turned to the front.