Document ID: chunk:federal_register_of_legislation:F2023C00136:reg:400:p5
Version: federal_register_of_legislation:F2023C00136
Segment Type: reg
Provision Reference: reg 400 (pt 5/14)
Character Range: 83906–86729

may be turned OFF manually.
6.9.3. "Circuit-closed" tell-tale
Mandatory. Flashing red signal lamp or, in the case of separate tell-tales, the simultaneous operation of the tell-tale prescribed in paragraph 6.3.8.
6.9.4. Other requirements
Light flashing 90 ± 30 times per minute.
Operation of the lamp-signal control shall be followed within not more than one second by the appearance of the light and within not more than one-and-one-half seconds by the first extinction of the light.
6.10. Front fog lamp
6.10.1. Number
One or two.
6.10.2. Arrangement
No special requirement.
6.10.3. Position
         6.10.3.1. In width: for a single lamp the centre of reference shall be in the median longitudinal plane of the vehicle; or the edge of the illuminating surface which is nearest to that plane shall be not more than 250 mm away from it;
         6.10.3.2. In height: not less than 250 mm above the ground. No point on the illuminating surface shall be higher than the highest point on the illuminating surface of the passing-beam headlamp.
          6.10.3.3. In length: at the front of the vehicle. This requirement shall be deemed to be satisfied if the light emitted does not cause discomfort to the driver either directly or indirectly through the rear-view mirrors and/or other reflecting surfaces of the vehicle.
6.10.4. Geometric visibility
Defined by angles α and β as specified in paragraph 2.11.:
α  =  5° upwards and downwards;
β  = 45° to left and to right for a single lamp, except for an off-                                           centre light, in which case the inward angle β = 10°;
β  = 45° outwards and 10° inwards for each pair of lamps
6.10.5. Orientation
Forwards. The lamp(s) may move in line with the steering angle.
6.10.6. May not be combined with any other front lamp.
6.10.7. "Circuit-closed" tell-tale
Optional; non-flashing green signal.
6.10.8. Other requirements
None.
6.10.9. Electrical connections
It shall be possible to switch the fog lamp(s) on or off independently of the driving-beam headlamp(s) and/or passing-beam headlamp(s).
6.11. Rear fog lamp
6.11.1. Number
One or two.
6.11.2. Arrangement
No special requirement.
6.11.3. Position
         6.11.3.1. In height: not less than 250 mm nor more than 900 mm above the ground;
         6.11.3.2. In length at the rear of the vehicle.
         6.11.3.3. The distance between the illuminating surface of the rear fog lamp and that of the stop lamp shall not be less than 100 mm.
6.11.4. Geometric visibility
Defined by angles α and β as specified in paragraph 2.11. of this Regulation:
α  = 5° upwards and downwards;
β  = 25° to left and to right for a single lamp;
                  25° outwards and 10° inwards for each pair of lamps.
6.11.5. Orientation
Rearwards.
6.11.6. Electrical connections
They shall be such that the rear