SCHEDULE 1 ESSENTIAL REQUIREMENTS

Power supply failure
19. In case of a reduction of the voltage supply to a value below the lower operating limit as specified by the manufacturer, the taximeter shall—
(a) continue to work correctly or resume its correct functioning without loss of data available before the voltage drop if the voltage drop is temporary, that is, due to restarting the engine; and
(b) abort an existing measurement and return to the position ‘For Hire’if the voltage drop is for a longer period.