Document ID: chunk:federal_register_of_legislation:F2007C00078:body:0:p7
Version: federal_register_of_legislation:F2007C00078
Segment Type: other
Provision Reference: 
Character Range: 20156–23083

fitting is optional;

2.3.  "transverse plane" means a vertical plane perpendicular to the median longitudinal plane of the vehicle;

2.4.  "unladen vehicle" means a vehicle without a driver, or passenger, and unladen, but with its fuel tank full and its normal complement of tools;

2.5.  "lamp" means a device designed to illuminate the rod or to emit a luminous signal; rear-registration-plate illuminating devices and reflex reflectors shall likewise be regarded as lamps;

2.5.1.   "equivalent lamps" means lamps having the same function and approved under the same Regulation annexed to the 1958 Agreement or in conformity with the same requirements; such lamps may have different characteristics from those of the lamps with which the vehicle is equipped at the time of approval, on condition that they satisfy the requirements of this Regulation;

2.5.2. "independent lamps" means lamps having separate illuminating surfaces, separate light sources and separate lamp bodies;

2.5.3. "grouped lamps" means devices having separate illuminating surfaces and separate light sources, but a common lamp body;

2.5.4. "combined" means devices having separate illuminating surfaces, but a common light source and a common lamp body;

2.5.5. "reciprocally incorporated" means devices having separate light sources (or a single

light source operating in different ways), but a common illuminating surface and a common lamp body;

2.5.6. "driving lamp" means the lamp used to illuminate the road over a long distance ahead of the vehicle;

2.5.7. "passing lamp" 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;

2.5.8. "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;

2.5.9. "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;

2.5.10. "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;

2.5.11. "front position lamp" means the lamp used to indicate the presence of the vehicle when viewed from the front;

2.5.12. "rear position lamp" means the lamp used to indicate the presence of the vehicle when viewed from the rear;

2.5.13.  "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;

2.5.14.  "vehicle hazard warning signal" means the simultaneous operation of all of a vehicle's direction-indicator lamps to show that the vehicle temporarily