Document ID: chunk:federal_register_of_legislation:F2023C00136:reg:113:p11
Version: federal_register_of_legislation:F2023C00136
Segment Type: reg
Provision Reference: reg 113 (pt 11/21)
Character Range: 44278–47052

The minimum distance between the facing edges of the apparent surfaces in the direction of the reference axis of two lamps or two independent retro reflectors does not exceed 75 mm when measured perpendicularly to the reference axis.
         5.6.2.4. Single lamps as defined in paragraph 2.14., subparagraph (d), shall fulfil the requirements of paragraph 5.6.2.1.
         5.6.2.5. Where two or more lamps and/or two or more separate apparent surfaces are included into the same lamp body and/or have a common outer lens, these shall not be considered as an interdependent lamp system.
         5.6.2.6. However, a lamp in the shape of a band or strip may be part of an interdependent lamp system.
5.7. The maximum height above ground shall be measured from the highest point and the minimum height from the lowest point of the apparent surface in the direction of the reference axis. For passing-beam headlamps, the minimum height from the ground shall be measured from the lowest point of the effective outlet of the optical system (e.g. reflector, lens, projection lens) independent of its utilisation.
Where the (maximum and minimum) height above the ground clearly meets the requirements of the Regulation, the exact edges of any surface need not be determined.
When referring to the distance between lamps, the position, as regards width, shall be determined from the inner edges of the apparent surface in the direction of the reference axis.
Where the position, as regards width, clearly meets the requirements of the Regulation, the exact edges of any surface need not be determined.
For the purposes of reducing the geometric visibility angles, the position of a lamp with regard to height above the ground, shall be measured from the H plane.
5.8. In the absence of specific instructions, no lamps other than direction indicator lamps, the vehicle-hazard warning signal lamps and the emergency stop signal shall be flashing lamps.
5.8.1. The photometric characteristics of a direction indicator lamp except for categories 5 and 6 specified in Regulation No. 6, and of a direction indicator lamp specified in Regulation No. 50 may be varied during a flash by sequential activation of light sources as specified in paragraph 5.6. of Regulation No. 6 or in paragraph 6.8. of Regulation No. 50.
This provision shall not apply when direction indicator lamps of categories 2a and 2b of Regulation No. 6 or category 12 of Regulation No. 50 are operated as emergency stop signal according to paragraph 6.14. of this Regulation.
5.9. No red light shall be visible towards the front and no white light shall be visible towards the rear. Compliance with this requirement shall be verified as shown hereunder (see drawing in Annex 4):
5.9.1. Visibility of red light towards