Document ID: chunk:federal_register_of_legislation:F2016C00338:reg:400:p1
Version: federal_register_of_legislation:F2016C00338
Segment Type: reg
Provision Reference: reg 400 (pt 1/10)
Character Range: 55772–58861

400                               ≤20

        For rear indicators, the clearance between the inner edges of the two illuminating surfaces shall be at least 180 mm on the condition that the prescriptions of paragraph 2.11. are applied even when the registration plate is mounted;

       6.3.3.2.  in height: not less than 350 mm nor more than 1,200 mm above the ground;

       6.3.3.3.  in length: the forward distance between the centre reference of the rear indicators and the transverse plane which constitutes the rearmost limit of the vehicle's over-all length shall not exceed 300 mm.

       6.3.4. Geometric visibility

        Horizontal angles: 20 degrees inwards, 80 degrees outwards

        Vertical angles; 15 degrees above and below the horizontal.

        The vertical angle below the horizontal may be reduced to 5 degrees , however, if the height of the lamps is less than 750 mm.

       6.3.5.  Orientation

        The front direction indicators may move in line with the steering angle.

       6.3.6.  May not be "combined" with any other lamp.

       6.3.7.  May not be "reciprocally incorporated" with any other lamp.

       6.3.8.  Electrical connections

        Direction-indicator lamps shall switch on independently of the other lamps. All direction-indicator lamps on one side of a vehicle shall be switched on and off by means of one control.

       6.3.9.  "Operating" tell-tale

        Mandatory. This may be optical or auditory or both. If it is optical it shall be (a) flashing green lamp(s), which, in the event of defective operation of any of the direction indicators, is extinguished, remains alight without flashing, or shows a marked change of frequency.

       6.3.10.  Other requirements

        The characteristics indicated below shall be measured with no other load on the electrical system than that required for the operation of the engine and the lighting devices. For all vehicles:

       6.3.10.1.  the light flashing frequency shall be 90 +/- 30 times per minute;

       6.3.10.2. the flashing of the direction indicators on the same side of the vehicle may occur synchronously or alternately;

       6.3.10.3. operation of the light-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.

       6.3.10.4.  In the event of failure, other than a short circuit, of one direction indicator lamp, the other(s) direction indicator lamp(s) indicating the same direction must continue to flash or remain alight, but the frequency in this condition may be different from that prescribed.

       6.4.  STOP LAMP

       6.4.1.  Number

        One or two.

       6.4.2.  Arrangement

        No special requirement.

       6.4.3.  Position

       6.4.3.1.  in height: not less than 250 mm nor more than 1,500 mm above the ground;

       6.4.3.2.  in length: at the rear of the vehicle.

       6.4.4.  Geometric visibility

        Horizontal angle: 45 degrees to left and to right for a single