Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p15
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 15/35)
Character Range: 484316–487750

and resulting from a combination of the two above possibilities shall in no circumstances be permitted.

        6.2.2. The headlamp shall be so aimed that:

        6.2.2.1. in the case of headlamps designed to meet the requirements of right-hand traffic, the "cut-off" on the left-half of the screen [9]/ is horizontal and, in the case of headlamps designed to meet the requirements of left-hand traffic, the "cut-off" on the right-half of the screen is horizontal;

        6.2.2.2. this horizontal part of the "cut-off" is situated on the screen 25 cm below the level hh (see Annex 3);

        6.2.2.3. the "elbow" of the "cut-off" is on line vv. [10]/

        6.2.3. When so aimed, the headlamp need, if its approval is sought solely for provision of a passing beam, [11]/ comply only with the requirements set out in paragraphs 6.2.5. to 6.2.7. and 6.2.9. below; if it is intended to provide both a passing beam and a driving beam, it shall comply with the requirements set out in paragraphs 6.2.5. to 6.2.7. and 6.3.

        6.2.4. Where a headlamp so aimed does not meet the requirements set out in paragraphs 6.2.5. to 6.2.7. and 6.3., its alignment may be changed, provided that the axis of the beam is not displaced laterally by more than 1° (= 44 cm) to the right or left. [12]/ To facilitate alignment by means of the "cut-off", the headlamp may be partially occulted in order to sharpen the "cut-off".

        6.2.5. The illumination produced on the screen by the passing beam shall meet the following requirements:

Point on measuring screen                                            Required illumination
                                                                     in lux
Headlamps for                                                        Headlamps for          Class A   Class B
right-hand traffic                                                   left-hand traffic      headlamp  headlamp
Point B 50 L                                                         Point B 50 R           < 0.4     < 0.4
Point 75 R                                                           Point 75 L             > 6       > 12
Point 75 L                                                           Point 75 R             < 12      < 12
Point 50 L                                                           Point 50 R             < 15      < 15
Point 50 R                                                           Point 50 L             > 6       > 12
Point 50 V                                                           Point 50 V             -         > 6
Point 25 L                                                           Point 25 R             > 1.5     > 2
Point 25 R                                                           Point 25 L             > 1.5     > 2
Any point in zone III                                                < 0.7                  < 0.7
Any point in zone IV                                                 > 2                    > 3
Any point in zone I                                                  < 20                   < 2E */
*/  E is the actually measured value in points 50R respectively 50L

        6.2.6. There shall be no lateral variations detrimental to good visibility in any of the zones I, II, III and IV.

        6.2.7. The illumination values in zones "A" and "B" as shown in figure C in Annex 3 shall be checked by the measurement of the photometric values of points 1 to 8