Document ID: chunk:federal_register_of_legislation:F2023C00136:reg:113:p10
Version: federal_register_of_legislation:F2023C00136
Segment Type: reg
Provision Reference: reg 113 (pt 10/21)
Character Range: 41441–44536

and
         5.5.2.4. Have identical nominal photometric characteristics;
         5.5.2.5. Come on and go off simultaneously;
5.6. Grouped, combined or reciprocally incorporated or single lamps
5.6.1. Lamps may be grouped, combined or reciprocally incorporated with one another provided that all requirements regarding colour, position, orientation, geometric visibility, electrical connections and other requirements, if any, are fulfilled.
         5.6.1.1. The photometric and colorimetric requirements of a lamp shall be fulfilled when all other functions with which this lamp is grouped, combined or reciprocally incorporated are switched OFF.
         5.6.1.2. However, when a front or rear position lamp is reciprocally incorporated with one or more other function(s), which can be activated together with them, the requirements regarding colour of each of these other functions shall be fulfilled when the reciprocally incorporated function(s) and the front or rear position lamps are switched ON.
         5.6.1.3. Stop lamps and direction indicator lamps are not permitted to be reciprocally incorporated.
         5.6.1.4. However, where stop lamps and direction indicator lamps are grouped, any horizontal or vertical straight line passing through the projections of the apparent surfaces of these functions on a plane perpendicular to the reference axis, shall not intersect more than two borderlines separating adjacent areas of different colour.
5.6.2. Where the apparent surface of a single lamp is composed of two or more distinct parts, it shall satisfy the following requirements:
         5.6.2.1. Single lamps as defined in paragraph 2.14., subparagraph (a), composed of two or more distinct parts, shall be installed in such a way that:
              (a) Either the total area of the projection of the distinct parts on a plane tangent to the exterior surface of the outer lens and perpendicular to the reference axis shall occupy not less than 60 per cent of the smallest quadrilateral circumscribing the said projection; or
              (b) The minimum distance between the facing edges of two adjacent/tangential distinct parts shall not exceed 75 mm when measured perpendicularly to the reference axis.
         5.6.2.2. These requirements shall not apply to a single retro-reflector.
         5.6.2.3. Single lamps as defined in paragraph 2.14., subparagraph (b) or (c), composed of two lamps marked "D" or two independent retro reflectors, shall be installed in such a way that:
              (a) Either the projection of the apparent surfaces in the direction of the reference axis of the two lamps or retro reflectors occupies not less than 60 per cent of the smallest quadrilateral circumscribing the projections of the said apparent surfaces in the direction of the reference axis; or
              (b) 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