Document ID: chunk:federal_register_of_legislation:F2023C00919:body:0:p68
Version: federal_register_of_legislation:F2023C00919
Segment Type: other
Provision Reference: 
Character Range: 202197–205103

at the front.
6.17.                                Side retro reflector, non-triangular (Regulation No. 3)
6.17.1.                          Presence
Mandatory: On all motor vehicles the length of which exceeds 6 m.
On all trailers.
Optional: On motor vehicles the length of which does not exceed 6 m.
6.17.2.                          Number
Such that the requirements for longitudinal positioning are complied with. The performances of these devices shall conform to the requirements concerning Class IA or IB retro reflectors in Regulation No. 3. Additional retro reflecting devices and materials (including two retro-reflectors not complying with paragraph 6.17.4. below), are permitted provided they do not impair the effectiveness of the mandatory lighting and light-signalling devices.
6.17.3.                          Arrangement
 No special requirement.
6.17.4.                          Position
6.17.4.1.              In width: no special requirement.
6.17.4.2.              In height: Above the ground, not less than 250 mm nor more than 900 mm (not more than 1,200 mm if grouped with any lamp(s), 1,500 mm if the shape of the bodywork makes it impossible to keep within 900 mm or 1,200 mm respectively or if the presence of the device is not mandatory according to paragraph 6.17.1.).
6.17.4.3.              In length: at least one side retro reflector shall be fitted to the middle third of the vehicle, the foremost side retro reflector being not further than 3 m from the front;
The distance between two adjacent side retro reflectors shall not exceed 3 m. This does not, however, apply to M1 and N1 category vehicles.
If the structure, design or the operational use of the vehicle makes it impossible to comply with such a requirement, this distance may be increased to 4 m. The distance between the rearmost side retro reflector and the rear of the vehicle shall not exceed 1 m.  However, for motor vehicles the length of which does not exceed 6 m, it is sufficient to have one side retro reflector fitted within the first third and/or one within the last third of the vehicle length.
However, for motor vehicles the length of which does not exceed 6 m, it is sufficient to have one side retro-reflector fitted within the first third and/or one within the last third of the vehicle length.  For M1 vehicles the length of which exceeds 6 m but does not exceed 7 m it is sufficient to have one side retro-reflector fitted not further than 3 m from the front and one within the last third of the vehicle length.
6.17.5.                          Geometric visibility
Horizontal angle: 45° to the front and to the rear.
Vertical angle:  10° above and below the horizontal. However, where a retro-reflector is mounted below 750 mm (measured according to the provisions of paragraph 5.8.1. above), the downward angle of 10° may be reduced to 5°.
6.17.6.                          Orientation
Towards