Emergency stops (2)

If the design of plant at a workplace includes an emergency stop control, the person with management or control of the plant at the workplace must ensure that —
(a) the stop control is prominent, clearly and durably marked and immediately accessible to each operator of the plant; and
(b) any handle, bar or push button associated with the stop control is coloured red; and
(c) the stop control cannot be adversely affected by electrical or electronic circuit malfunction.