Hong Kong Regulations

ROAD TRAFFIC (CONSTRUCTION AND MAINTENANCE OF VEHICLES) REGULATIONS - REGULATION 18A

Hydraulic braking systems

(1) A motor vehicle which is manufactured on or after 1 January 1990 and first
registered on or after 1 July 1990 and which is equipped with a hydraulic
braking system shall be provided with a warning device so placed as to be
readily visible or audible to the driver of the vehicle when in the driving
seat in order to indicate any impending failure in the hydraulic braking
system due to fluid loss.

(2) The warning device referred to in paragraph (1) shall be so designed and
constructed that-

   (a)  for a motor vehicle equipped with a split braking system, it will
        detect the differential in fluid pressure, or a drop in fluid level;
        and

   (b)  for a motor vehicle equipped with a non-split braking system, it will
        detect a loss in the applied fluid pressure, or a drop in fluid level.

(3) The Commissioner may, if he thinks fit, approve in writing the fitting in
a hydraulic braking system of a warning device of a design and construction
other than that described in paragraph (2) as sufficient compliance with
paragraph (1). (L.N. 203 1990)