Northern Territory Consolidated Regulations Northern Territory Consolidated Regulations(1) When operating, a warning light must display regular flashes of yellow light at a rate of at least 90, and not over 180, flashes a minute.
(2) The warning lights at the same end of the bus must flash alternately.
(3) Unless the driver has turned the warning lights off, they must operate automatically when a door on the bus opens and for at least 10, and not over 20, seconds after all the doors on the bus have closed.
(4) The bus must have a visible or audible signal that tells the driver when the warning lights are operating.
(5) The bus must be fitted with a switch that allows the driver to turn the warning lights off.
(6) A warning light must have:
(a) an effective lit lens area of at least 60 square centimetres; and
(b) a luminous intensity (in candela) of at least the values mentioned in the following table when measured at the angles mentioned in the table.
(7) For subrule (6)(b), the luminous intensity of a light is to be measured in accordance with the test method mentioned in third edition ADR 6.