Document ID: chunk:federal_register_of_legislation:F2023C00228:front:0:p101
Version: federal_register_of_legislation:F2023C00228
Segment Type: other
Provision Reference: 
Character Range: 273101–276179

lamps
       Appendix 1
       Appendix 2
       Appendix 3
       Appendix 4
Annex 7 Minimum requirements for sampling by an inspector
Regulation No. 20

UNIFORM PROVISIONS CONCERNING THE APPROVAL OF MOTOR VEHICLE HEADLAMPS EMITTING AN ASYMMETRICAL PASSING BEAM OR A DRIVING BEAM OR BOTH AND EQUIPPED WITH HALOGEN FILAMENT LAMPS (H4 LAMPS)

       A. ADMINISTRATIVE PROVISIONS

       SCOPE [1/]

       This Regulation applies to motor vehicle headlamps which may incorporate lenses of glass or plastic material.

       1. DEFINITIONS

        For the purpose of this Regulation,

       1.1. "Lens" means the outermost component of the headlamp (unit) which transmits light through the illuminating surface;

       1.2. "Coating" means any product or products applied in one or more layers to the outer face of a lens;

       1.3. Headlamps of different "types" are headlamps which differ in such essential respects as:

       1.3.1. the trade name or mark;

       1.3.2. the characteristics of the optical system;

       1.3.3. the inclusion or elimination of components capable of altering the optical effects by reflection, refraction, absorption and/or deformation during operation.  However, the fitting or elimination of filters intended solely to change the colour of the beam but not its light distribution does not entail a change of type;

       1.3.4. suitability for right-hand or left-hand traffic or for both traffic systems;

       1.3.5. the kind of beam produced (passing beam, driving beam or both);

       1.3.6. the materials constituting the lenses and coating, if any.

       2. APPLICATION FOR APPROVAL OF A HEADLAMP [2/]

       2.1. The application for approval shall be submitted by the owner of the trade name or mark or by his duly accredited representative. It shall specify:

       2.1.1. whether the headlamp is intended to provide both a passing beam and a driving beam or only one of these beams;

       2.1.2. whether, if the headlamp is intended to provide a passing beam, it is designed for both left-hand and right-hand traffic or for either left-hand or right-hand traffic only.

       2.1.3. if the headlamp is equipped with an adjustable reflector, the mounting position(s) of the headlamp in relation to the ground and the longitudinal median plane of the vehicle.

       2.2. Every application for approval shall be accompanied by:

       2.2.1. drawings  in  triplicate  in  sufficient  detail  to  permit  identification  of  the  type  and representing a frontal view of the headlamp, with details of lens ribbing if any, and the cross-section; the drawings shall indicate the space reserved for the approval mark;

       2.2.1.1. if the headlamp is equipped with an adjustable reflector, an indication of the mounting position(s) of the headlamp in relation to the ground and the longitudinal median plane of the vehicle, if the headlamp is for use in that (those) position(s) only;

       2.2.2. a brief technical description;

       2.2.3. two samples of the type of headlamp;

       2.2.3.1. for the testing