South Australian Numbered Regulations South Australian Numbered Regulations(1) A vehicle must have a mudguard firmly fitted for each wheel or adjacent wheels.
(2) However, subrule (1) does not apply to a vehicle if—
(a) the construction or use of the vehicle makes the fitting of mudguards unnecessary or impracticable; or
(b) the body or part of the body of the vehicle acts as a mudguard.
Examples of vehicles to which subrule (2)(a) applies—
(a) most road-making plant;
(b) some agricultural equipment.
(3) A mudguard may be up to—
(a) 230 millimetres above ground level; or
(b) on a vehicle built to be used off-road—300 millimetres above ground level.
(4) The outside of a rear mudguard, except a mudflap, of a vehicle that can be seen from the rear of the vehicle must be coloured white or silver if the vehicle—
(a) is at least 2.2 metres wide; and
(b) has a body the vertical measurement of which is under 300 millimetres at the rear, measured from the lowest point of the body above ground level to the highest point; and
(c) is not fitted with rear marking plates or conspicuity markings in accordance with rule 115.