Document ID: chunk:federal_register_of_legislation:F2023C00153:front:0:p7
Version: federal_register_of_legislation:F2023C00153
Segment Type: other
Provision Reference: 
Character Range: 19333–22722

uncoloured filament lamp.  Expressed in CIE trichromatic co-ordinates, the corresponding colorimetric characteristics for yellow glasses or filters are as follows: Selective-yellow filter (screen or lens)
                            Limit towards red y> 0.138 + 0.58 x
                            Limit towards greed y< 1.29 x -0.1
                            Limit towards white y< -x + 0.966
                            Limit towards special value y< -x + 0.992
which can also be expressed as follows:
                            dominant wave-length 575 - 585 n m
                            purity factor 0.90 - 0.98
                            The transmission factor must be > 0.78
The transmission factor shall be determined by using a light source with a colour temperature of 2,856 K. (Corresponding to illuminant A of the International Commission on Illumination (CIE)).
8.2.                                    The filter must be part of the headlamp, and must be attached to it in such a way that the user cannot remove it either inadvertently or intentionally, with ordinary tools.
8.3.                                    Observation concerning colour
Since any approval under this Regulation is granted, pursuant to paragraph 8.1 above, for a type of headlamp emitting either colourless light or selective-yellow light; article   3 of the agreement to which the Regulation is annexed shall not prevent the Contracting Parties from prohibiting headlamps emitting a beam of uncoloured or selective yellow light on vehicles registered by them.
9.                                          TRANSITIONAL PROVISIONS
9.1.                                    As from the date of entry into force of the 01 series of amendments to this Regulation no Contracting Party applying it shall refuse to grant approvals under this Regulation as amended by the 01 series of amendments.
9.2.                                    As from 24 months after the date of entry into force mentioned in paragraph 9.1 above, Contracting Parties applying this Regulation shall grant approval only if the type of headlamp corresponds to the requirements of this Regulation as amended by the 01 series of amendments.
9.3.                                    Existing MB-approvals granted under this Regulation before the date mentioned in paragraph 9.2 above shall remain valid.
However, Contracting Parties applying this Regulation may prohibit the fitting of devices which do not meet the requirements of this Regulation as amended by the 01 series of amendments.
9.3.1.                              On vehicles for which type approval or individual approval is granted more than 24 months after the date of entry into force mentioned in paragraph 9.1 above.
9.3.2.                              On vehicles first registered more than 5 years after the date of entry into force mentioned in paragraph 9.1 above.
10.                                      CONFORMITY OF PRODUCTION
10.1.                                Headlamps approved under this Regulation shall be so manufactured as to conform to the type approved by meeting the requirements set forth in paragraph 7 above.
10.2.                                In order to verify that the requirements of paragraph 10.1 are met, suitable controls of the production shall be carried out.
10.3.                                The holder of the approval shall in