Document ID: chunk:federal_register_of_legislation:F2023C00136:reg:400:p6
Version: federal_register_of_legislation:F2023C00136
Segment Type: reg
Provision Reference: reg 400 (pt 6/14)
Character Range: 86487–89341

= 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 fog lamp can light up only when one or more of the following lamps are switched on: driving-beam headlamp, passing-beam headlamp, front fog lamp.
If there is a front fog lamp, it shall be possible to switch off the rear fog lamp independently of the front fog lamp.
The rear fog lamp(s) may continue to operate until the position lamps are switched off and they shall remain off until deliberately switched on again.
6.11.7. "Circuit-closed" tell-tale
Mandatory. Non-flashing amber signal lamp.
6.11.8. Other requirements
None.
6.12. Side retro-reflector, non-triangular
6.12.1. Number per side
One or two.
6.12.2. Arrangement
No special requirement.
6.12.3. Position
         6.12.3.1. On the side of the vehicle.
         6.12.3.2. In height: not less than 300 mm nor more than 900 mm above the ground;
         6.12.3.3. In length: should be placed in such a position that under normal conditions it may not be masked by the driver's or passenger's clothes.
6.12.4. Geometric visibility
Horizontal angles β = 30° to the front and to the rear.
Vertical angles α = 15° above and below the horizontal.
However, where a lamp is mounted below 750 mm (measured according to the provisions of paragraph 5.7.), the downward angle of 15° may be reduced to 5°.
6.12.5. Orientation
The reference axis of the retro-reflectors must be perpendicular to the vehicle's median longitudinal plane and directed outwards. The front side retro-reflectors may move with the steering angle.
6.13. Daytime running lamp
6.13.1. Presence
Optional for motorcycles.
6.13.2. Number
One or two of approved type according to Regulation No. 87.
6.13.3. Arrangement
No special requirement.
6.13.4. Position
         6.13.4.1. In width:
6.13.4.1.1.              An independent daytime running lamp may be installed above, below or to one side of another front lamp: If these lamps are one above the other, the reference centre of the daytime running lamp shall be located within the medium longitudinal plane of the vehicle; if these lamps are side by side, the edge of the illuminating surface shall not be more than 250 mm from the median longitudinal plane of the vehicle.
6.13.4.1.2.              A daytime running lamp, that is reciprocally incorporated with another front lamp (driving-beam headlamp or front position lamp), shall be fitted in such a way that the edge of the illuminated surface lies not more than 250 mm from the median longitudinal plane of the vehicle.
6.13.4.1.3.              Two daytime running lamps, of which either one or both are reciprocally incorporated with another front lamp, shall be installed in such a