Document ID: chunk:federal_register_of_legislation:F2023C00136:reg:113:p9
Version: federal_register_of_legislation:F2023C00136
Segment Type: reg
Provision Reference: reg 113 (pt 9/21)
Character Range: 38823–41760

paragraph 4.4.1. above need not be repeated; in such a case the Regulation and approval numbers and the additional symbols of all the Regulations under which approval has been granted in the country which has granted approval under this Regulation shall be placed in vertical columns to the right of the symbol prescribed in paragraph 4.4.1. above.
4.6. The approval mark shall be clearly legible and be indelible.
4.7. The approval mark shall be placed close to or on the vehicle data plate affixed by the manufacturer.
4.8. Annex 2 to this Regulation gives examples of the arrangement of the approval marks.

         5. GENERAL SPECIFICATIONS

5.1. The lighting and light-signalling devices shall be so fitted that in normal conditions of use, and notwithstanding the vibrations to which they may be subjected, they retain the characteristics prescribed by this Regulation and enable the vehicle to comply with the requirements of this Regulation.
In particular, it shall not be possible for the lamps to be inadvertently maladjusted.
5.2. The illuminating lamps shall be so installed that correct adjustment of their orientation can easily be carried out.
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.
5.4. In the absence of specific instructions, the height and orientation of the lamps shall be verified with the vehicle unladen and placed on a flat horizontal surface, its median longitudinal plane being vertical and the handlebars being in the position corresponding to the straight ahead movement. The tyre pressures shall be those prescribed by the manufacturer for the particular conditions of loading required in this Regulation.
5.5. In the absence of specific instructions:
5.5.1. Single lamps or reflectors shall be mounted such that their centre of reference lies in the median longitudinal plane of the vehicle;
5.5.2. Lamps constituting a pair and having the same function shall:
         5.5.2.1. Be mounted symmetrically in relation to the median longitudinal plane;
         5.5.2.2. Be symmetrical to one another in relation to the median longitudinal plane;
         5.5.2.3. Satisfy the same colorimetric requirements; and
         5.5.2.4. Have identical nominal photometric characteristics;
         5.5.2.5. Come on and go off simultaneously;
5.6. Grouped, combined or reciprocally incorporated or single lamps
5.6.1. Lamps may be grouped, combined or reciprocally incorporated with one another provided that all requirements regarding