S.L. 65.11 Art. 92Brakes.

A motor vehicle shall be equipped with two entirely independent and efficient braking systems (one of which shall operate on all four wheels) or with one efficient braking system (which shall operate on all four wheels) having two independent means of operation, in each case so designed and constructed that the failure of any single portion of any braking system shall not prevent the brakes on two wheels, or in the case of a vehicle having less than four wheels, on one wheel, from operating effectively so as to bring the vehicle to rest within a reasonable distance: Provided that in the case of a single braking system the two means of operation shall not be deemed to be otherwise than independent solely by reason of the fact that they are connected either directly or indirectly to the same cross shaft. In the case of a motor vehicle having more than three wheels and equipped with two independent braking systems, if either system operates only on two wheels, it shall be so designed and constructed, that the brakes thereof shall act on two wheels on the same axle. Where, in the case of a single braking system, the means of operation are connected directly or indirectly to the same cross shaft, the brakes applied by one of such means shall act on all of the wheels of the motor vehicle directly and not through the transmission gear. In all cases the brakes operated by one of the means of operation shall be applied by direct mechanical action without the intervention of any hydraulic, electric or pneumatic device. One means of operation shall be by foot pedal and one shall be self-holding. In all cases the brakes operated by one of the means of operation shall act directly upon the wheels and not through the transmission gear.

Where brake connections are secured with bolts or pins, the bolts or pins shall be threaded and effectively locked. All connections made with bolts or pins shall be such that when they are in any position other than horizontal the head of the bolt or pin shall be uppermost.

Every invalid carriage shall be equipped with an efficient braking system, the brakes of which act on at least two of the wheels of the vehicle so designed and constructed that the application of the brakes shall bring the vehicle to rest within a reasonable distance.

Every trailer exceeding 100 kg. unladen shall be equipped with a brake operating on at least two wheels in the case of a trailer with not more than four wheels and on four wheels in the case of trailers having more than four wheels.