Document ID: chunk:federal_register_of_legislation:F2023C00919:body:0:p30
Version: federal_register_of_legislation:F2023C00919
Segment Type: other
Provision Reference: 
Character Range: 95171–98221

functions shall be fulfilled when the reciprocally incorporated function(s) and the front or rear position lamps are switched ON.
5.7.1.2.                        Stop lamps and direction-indicator lamps are not permitted to be reciprocally incorporated.
5.7.1.3.                        Where stop lamps and direction-indicator lamps are grouped, the following conditions shall be met:
5.7.1.3.1.              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;
5.7.1.3.2.              Their apparent surfaces in the direction of the reference axis, based upon the areas bounded by the outline of their light emitting surfaces, do not overlap.
5.7.2.                              Single lamps
5.7.2.1.                        Single lamps as defined in paragraph 2.16.1., 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.
These requirements shall not apply to a single retro-reflector.
5.7.2.2.                        Single lamps as defined in paragraph 2.16.1., 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.
5.7.2.3.                        Single lamps as defined in paragraph 2.16.1., subparagraph (d) shall fulfil the requirements of paragraph 5.7.2.1.
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.
However, a lamp in the shape of a band or strip may be part of an interdependent lamp system.
5.7.2.4.                        Two lamps or an even number of lamps in the shape of a band or strip shall be placed symmetrically in relation to the median longitudinal plane of the vehicle, extending on both sides to within at