Learner's License Theory
Number Plate Lamp
You may not drive a motor vehicle on a public road, unless it is fitted with at least one number-plate lamp at the rear, illuminating the number plate. Every letter and figure of such plate must be visible from a distance of 20 meters by a person of normal eyesight.
A South African Bureau of Standards (SABS) approve number plate shall be affixed—
(a) in such a manner that it is not easily detachable;
(b) in an upright position or within 30 degrees of such position;
(c) in such a manner that each letter and figure thereon is clearly legible;
(d) in such a manner that the whole number plate is clearly visible;
(e) to the back of a motor cycle, motor tricycle, or trailer; and
(f) one to the back and one to the front of all other motor vehicles.