Document ID: chunk:federal_register_of_legislation:F2023C00133:body:0:p2
Version: federal_register_of_legislation:F2023C00133
Segment Type: other
Provision Reference: 
Character Range: 4416–8014

4.2.                                    'Transverse Plane' means a vertical plane perpendicular to the median longitudinal plane of the vehicle;
4.3.                                    'Unladen Vehicle' means a vehicle without a driver, or passenger, and unladen, but with its fuel tank full and its normal complement of tools;
4.4.                                    'Lamp' means a device designed to illuminate the road or to emit a luminous signal;   'Rear-registration-plate Illuminating Devices' and reflex reflectors shall likewise be regarded as lamps;

         4.5.                                    'Independent Lamps' means lamps having separate illuminating surfaces, separate light sources and separate lamp bodies;

         4.6.                                    'Grouped Lamps' means devices having separate illuminating surfaces and separate light sources, but a common lamp body;

         4.7.                                    'Combined Lamps' means devices having separate illuminating surfaces, but a common light source and a common lamp body;

         4.8.                                    'Reciprocally Incorporated Lamps' means devices having separate light sources (or a single light source operating in different ways), but a common or partially common illuminating surface and a common lamp body;

         4.9.                                    'Main-beam Headlamp' means the lamp used to illuminate the road over a long distance ahead of the vehicle (also known as a driving beam);

         4.10.                                'Dipped-beam Headlamp' means the lamp used to illuminate the road ahead of the vehicle without causing undue dazzle or discomfort to oncoming drivers and other road users (also known as a passing beam);

         4.11.                                'Direction Indicator Lamp' means the lamp used to indicate to other road-users that the driver intends to change direction to the right or to the left;

         4.12.                                'Stop Lamp' means the lamp used to indicate to other road-users to the rear of the vehicle that its driver is applying the service brake;

         4.13.                                'Rear-Registration-Plate Illuminating Device' means the device used to illuminate the space reserved for the rear-registration-plate; such a device may consist of several optical components;

         4.14.                                'Front Position (Side) Lamp' means the lamp used to indicate the presence of the vehicle when viewed from the front;

         4.15.                                'Rear Position (Side) Lamp' means the lamp used to indicate the presence of the vehicle when viewed from the rear;

         4.16.                                'Reflex Reflector' means a device used to indicate the presence of a vehicle by the reflection of light from a light source not connected with the vehicle, the observer being situated near that source; for the purpose of this Regulation the reflective number plates are not considered as reflex reflectors;

         4.17.                                'Vehicle Hazard Warning Signal' means the simultaneous operation of all of a vehicle's direction-indicator lamps to show that the vehicle temporarily constitutes a special danger to other road users;

         4.18.                                'Front Fog Lamp' means the lamp used to improve the illumination of the road in case of fog, snowfall, rainstorms or dust clouds;

         4.19.                                'Rear Fog Lamp' means the lamp used to make the vehicle