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

The driver of a vehicle on a public road who intends to stop such vehicle or suddenly reduce the speed thereof, or to turn such vehicle to the left or to the right, or to move such vehicle to the left or right on the roadway, shall give a conspicuous signal, in the manner prescribed in regulations 324 to 328, of his or her intention, visible to any person approaching him or her from the front or from the rear or from the side, and of a duration sufficient to warn any such person of his or her intention.