| 5.3. |
For all light-signalling devices the reference axis of the lamp when fitted to the vehicle shall be parallel to the bearing plane of the vehicle on the road; in addition, it shall be perpendicular to the median longitudinal plane of the vehicle in the case of side retro-reflectors and parallel to that plane in the case of all light-signalling devices. A tolerance of ± 3° shall be allowed in each direction. In addition, if specifications for fitting are provided by the manufacturer they shall be complied with. |
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