Singapore legislation
Regulation 4
of Road Traffic (Motor Vehicles, Speed Warning Device) Rules
Regulation 4
Speed warning device
Subregulation 1
A speed warning device installed in a motor vehicle under these Rules must consist of the following parts built into a single unit:
a lamp;
a buzzer;
a switch that —
is for the purposes of testing whether the lamp and buzzer mentioned in sub-paragraphs (a) and (b) are working; and
when switched on causes —
the lamp mentioned in sub-paragraph (a) to light up; and
the buzzer mentioned in sub-paragraph (b) to produce a warning sound.
Subregulation 2
The speed warning device must be installed in the motor vehicle in a position that allows —
the light emitted by the speed warning device to be clearly visible to the driver (called X) when driving the vehicle;
the warning sound produced by the speed warning device to be audible to X when driving the vehicle; and
the switch on the speed warning device to be switched on without disassembling any part of the vehicle.
Subregulation 3
The speed warning device shall be so constructed that —
when the vehicle in which the device is installed exceeds the statutory speed limit for the vehicle as prescribed in the Road Traffic (Regulation of Speed) Rules [R 13] —
the lamp shows a flashing light; and
the buzzer produces a warning sound; and
when the vehicle is stationary, with its engine running, the lamp is lit.
Subregulation 4
[Deleted by S 834/2025 wef 29/12/2025]
Subregulation 5
All exposed electrical connections of the speed warning device shall be made of coaxial cable or of an approved design.
Subregulation 6
The speed warning device shall be capable of being sealed against any unauthorised adjustment of the activation speed of the vehicle.