Document ID: chunk:federal_register_of_legislation:F2023C00228:front:0:p108
Version: federal_register_of_legislation:F2023C00228
Segment Type: other
Provision Reference: 
Character Range: 291835–294725

its aid.  The "cut-off" must be a horizontal straight line on the side opposite to the direction of the traffic for which the headlamp is intended; on the other side, it must not extend beyond either the broken line HV H1 H4 formed by a straight line HV H1 making a 45 degrees angle with the horizontal and the straight line H1 H4, 25 cm above the straight line hh, or the straight line HV H3, inclined at an angle of 15 degrees above the horizontal (see annex 4). A "cut-off" extending beyond both line HV H2 and line H2H4 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 4);

       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. 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 degrees (= 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
 Headlamp for                               Headlamp for
 right-hand traffic                         left-hand traffic
Point B 50 L                               Point B 50 L
" 75 R                                     " 75 L
" 75 L                                     " 75 R
" 50 L                                     " 50 L
" 50 R                                     " 50 R
" 50 V                                     " 50 V
" 25 L                                     " 25 R
" 25 R                                     " 25 L
Any point in zone III                      < 0.7
Any point in zone IV                       > 3
Any point in zone I < 2 x (E50R or E50L)*  < 2 x (E50R or E50L)*