South Australian Numbered Regulations South Australian Numbered Regulations(1) A brake light must be fitted to the rear of a vehicle built after 1934.
(2) A pair of brake lights must be fitted to the rear of—
(a) a motor vehicle built after 1959 that has 4 or more wheels; and
(b) a motor trike built after 1959 that has 2 rear wheels; and
(c) a trailer built after June 1973.
(3) The centre of a brake light must be—
(a) at least 350 millimetres above ground level; and
(b) not over—
(i) 1.5 metres above ground level; or
(ii) if it is not practicable to fit the light lower—2.1 metres above ground level.
(4) A vehicle may be fitted with 1 or more additional brake lights.
(5) The centre of an additional brake light must be at least 350 millimetres above ground level.
(6) If only 1 brake light is fitted to a vehicle, it must be fitted in the centre or to the right of the centre of the vehicle’s rear.
(7) Subrule (6) applies to a motor bike with an attached sidecar as if the sidecar were not attached.
(8) For the purposes of this rule, a light fitted to a vehicle that functions as a brake light and a direction indicator light is taken to be a brake light if the vehicle was built before 1 January 1973.