Document ID: chunk:federal_register_of_legislation:F2023C00134:body:0:p5
Version: federal_register_of_legislation:F2023C00134
Segment Type: other
Provision Reference: 
Character Range: 11781–14501

mark.
4.4.2. The identification symbol for each lamp appropriate to each Regulation under which approval has been granted, together with the corresponding series of amendments incorporating the most recent major technical amendments to the Regulation at the time of issue of the approval, shall be marked:
4.4.2.1. Either on the appropriate light-emitting surface,
4.4.2.2. Or in a group, in such a way that each lamp of the grouped, combined or reciprocally incorporated lamps may be clearly identified (see three possible examples in annex 2).
4.4.3. The size of the components of a single approval mark shall not be less than the minimum size required for the smallest of the individual marks by a Regulation under which approval has been granted.
4.4.4. An approval number shall be assigned to each type approved.  The same Contracting Party may not assign the same number to another type of grouped, combined or reciprocally incorporated lamps covered by this Regulation.
4.5. The mark and symbol referred to in paragraphs 4.3.1. and 4.3.2. shall be indelible and shall be clearly legible even when the reversing lamp is mounted on the vehicle.
4.6. Annex 2 gives examples of approval marks for a single lamp (figure 1) and for grouped, combined or reciprocally incorporated lamps (figure 2) with all the additional symbols referred to above, in which the letters A and R are mingled.

5. GENERAL SPECIFICATIONS
5.1. Each sample shall conform to the specifications set forth in the paragraphs below.
5.2. Reversing lamps shall be so designed and constructed that in normal use, despite the vibration to which they may then be subjected, they continue to function satisfactorily and retain the characteristics prescribed by this Regulation.
6. INTENSITY OF LIGHT EMITTED
6.1. The intensity of the light emitted by each of the two samples shall be not less than the minima and not greater than the maxima specified below and shall be measured in relation to the axis of reference in the directions shown below (expressed in degrees of angle with the axis of reference).
6.2. The intensity along the axis of reference shall be not less than 80 candelas.
6.3. The intensity of the light emitted in all directions in which the light can be observed shall not exceed
300 candelas in directions in or above the horizontal plane; or
600 candelas in directions below the horizontal plane.
6.4. In every other direction of measurement shown in annex 3 to this Regulation the luminous intensity shall be not less than the minima specified in that annex.  However, in the case where the reversing lamp is intended to be installed on a vehicle exclusively in a pair of devices, the photometric intensity may be verified only up