Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p17
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 17/40)
Character Range: 382331–385531

and test values
       8. Illumination
       9. Colour
       10. Gauging of discomfort
       11. Conformity of production
       12. Penalties for non-conformity of production
       13. Modification and extension of approval of a type of halogen sealed-beam headlamp unit (HSB unit)
       14. Production definitely discontinued
       15. Transitional provisions
       16. Names and addresses of technical services responsible for conducting approval tests and of administrative departments

       ANNEXES

       Annex 1 - Communication concerning the approval or extension or refusal or withdrawal of approval or production definitely discontinued of a type of halogen sealed-beam headlamp unit (HSB unit) pursuant to Regulation No. 31
       Annex 2 - Example of arrangements of approval marks
       Annex 3 - Electrical connections of HSB units
       Annex 4 - Measuring screen
       Annex 5 - Minimum requirements for conformity of production control procedures
       Annex 6 - Tests for stability of photometric performance of headlamps in operation
       Annex 7 - Requirements for lamps incorporating lenses of plastic material - testing of lens or material samples and of complete lamps
       Appendix 1 -Chronological order of approval tests
       Appendix 2 -Method of measurement of the diffusion and transmission of light
       Appendix 3 -Spray testing method
       Appendix 4 -Adhesive tape adherence test
       Annex 8 - Minimum requirements for sampling by an inspector

Regulation No. 31

UNIFORM PROVISIONS CONCERNING THE APPROVAL OF HALOGEN SEALED-BEAM UNIT (HSB UNIT) MOTOR VEHICLE HEADLAMPS EMITTING AN ASYMMETRICAL

PASSING BEAM OR A DRIVING BEAM OR BOTH

       1. SCOPE [1/]

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

       2. DEFINITIONS

       For the purpose of this Regulation,

       2.1. "Halogen sealed-beam headlamp unit" (hereinafter termed "HSB unit") means a headlamp whose components, including a reflector of glass, metal or other material, an optical system and one or more halogen light sources, form an integral whole which is indivisibly joined and cannot be dismantled without rendering the unit completely unusable.  Such units are:

       2.1.1. of "category 1", when they emit only a driving beam;

       2.1.2. of "category 21", when they emit only a passing beam;

       2.1.3. of "category 22", when they emit, at the user's choice, either a driving beam or a passing beam;

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

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

       2.4. "HSB units of different types" means units which differ in such essential respects as:

       2.4.1. the trade name or mark;

       2.4.2. the characteristics of the optical system;

       2.4.3. the inclusion or elimination of components capable of altering the optical effects by reflection, refraction, absorption and/or deformation during operation; the fitting or elimination of filters intended solely to change the