Document ID: chunk:federal_register_of_legislation:F2023C00136:reg:113:p6
Version: federal_register_of_legislation:F2023C00136
Segment Type: reg
Provision Reference: reg 113 (pt 6/21)
Character Range: 31018–33906

retro-reflectors;
2.13. "Over-all width" means the distance between the two vertical planes defined in paragraph 2.12. above;
2.14. "A single lamp" means:
             (a) A device or part of a device having one lighting or light-signalling function, one or more light source(s) and one apparent surface in the direction of the reference axis, which may be a continuous surface or composed of two or more distinct parts; or
             (b) Any assembly of two lamps marked "D", whether identical or not, having the same function, or
             (c) Any assembly of two independent retro-reflectors, whether identical or not, that have been approved separately; or
             (d) Any interdependent lamp system composed of two or three interdependent lamps marked "Y" approved together and providing the same function.
2.15. "Distance between two lamps" which face in the same direction means the shortest distance between the two apparent surfaces in the direction of the reference axis. Where the distance between the lamps clearly meets the requirements of the Regulation, the exact edges of apparent surfaces need not be determined;
2.16. "Operating tell-tale" means a visual or auditory signal (or any equivalent signal) indicating that a device has been switched on and whether or not it is operating correctly;
2.17. "Circuit-closed tell-tale" means a visual (or any equivalent signal) indicating that a device has been switched on, but not indicating whether or not it is operating correctly;
2.18. "Optional lamp" means a lamp, the installation of which is left to the discretion of the manufacturer;
2.19. "Ground" means the surface on which the vehicle stands which should be substantially horizontal;
2.20. "Device" means a component or combination of components used in order to perform one or several functions.
2.21. "Colour of the light emitted from the device". The definitions of the colour of the light emitted given in Regulation No. 48 and its series of amendments in force at the time of application for type approval shall apply to this Regulation.
2.22. "Gross vehicle mass" or "maximum mass" means the technically permissible maximum laden mass as declared by the manufacturer.
2.23. "Laden" means so loaded as to attain the gross vehicle mass as defined in paragraph 2.22. above.
2.24. "Horizontal inclination" means the angle created between the beam pattern when the motorcycle is set as specified in paragraph 5.4. of this Regulation, and the beam pattern when the motorcycle is banked (see drawing in Annex 6);
2.25. "Horizontal inclination adjustment system (HIAS)" means a device that adjusts the horizontal inclination of the headlamp towards zero;
2.26. "Bank angle" means the angle made with the vertical by the vertical longitudinal median plane of the motorcycle, when the motorcycle is rotated about its longitudinal axis (see drawing in Annex 6);