Hong Kong Regulations

ROAD TRAFFIC (CONSTRUCTION AND MAINTENANCE OF VEHICLES) REGULATIONS - REGULATION 19

Braking efficiency

(1) Subject to paragraph (2), every braking system of every motor vehicle
shall-

   (a)  have brakes acting on all the wheels of the vehicle which as applied
        by one means of operation have a total braking efficiency of not less
        than 50 per cent;

   (b)  subject to sub-paragraph (c), have brakes which as applied by a second
        independent means of operation have a total braking efficiency of not
        less than 25 per cent; and

   (c)  in the case of a motor vehicle equipped with a split braking  system
        to which regulation 16(8) applies, have brakes which in the event of a
        failure of any part (other than a fixed member or a brake shoe anchor
        pin) of one of the independent sections comprised in the
        split braking  system are such that there remain brakes applied by the
        other section sufficient to have a total braking efficiency of not
        less than 25 per cent. (L.N. 218 of 1984)

(2) This regulation shall not apply to engineering plant, an
industrial tractor, land locomotive, land tractor, motor cycle, motor
tricycle, invalid carriage, pedestrian controlled vehicle and straddle 
carrier.