Document ID: chunk:federal_register_of_legislation:F2023C00158:front:0:p6
Version: federal_register_of_legislation:F2023C00158
Segment Type: other
Provision Reference: 
Character Range: 14757–17716

It is visible after their installation;

       5.6.1.2. No part of the grouped, combined or reciprocally incorporated lamps that transmits light can be removed without at the same time removing the approval mark.

       5.6.2. 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:

       5.6.2.1. Either on the appropriate light-emitting surface,

       5.6.2.2. 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 shown in annex 3).

       5.6.3. 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.

       5.6.4. 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.

       5.7. The approval mark must be clearly legible and be indelible.

       5.8. Annex 3 to this Regulation gives examples of arrangements 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.

       6. GENERAL SPECIFICATIONS

       6.1. Retro-reflecting devices must be so constructed that they function satisfactorily and will continue to do so in normal use. In addition, they must not have any defect in design or manufacture that is detrimental to their efficient operation or to their maintenance in good condition.

       6.2. The components of retro-reflecting devices must not be capable of being easily dismantled.

       6.3. Retro-reflecting optical units may not be replaceable.

       6.4. The outer surface of retro-reflecting devices must be easy to clean. Hence it must not be a rough surface; any protuberances it may exhibit must not prevent easy cleaning.

       6.5. For devices of Class IV A their means of fixation shall be such that they allow a stable and durable connection between the device and the vehicle.

       6.6. There shall be no access to the inner surface of the retro-reflectors when in normal use.

       7. SPECIAL SPECIFICATIONS (TESTS)

       7.1. Retro-reflecting devices must also satisfy the conditions as to dimensions and shape, and the colorimetric, photometric, physical and mechanical requirements set forth in annexes 5 to 11 and 13 to this Regulation.  The test procedures are described in annex 4 (Class IA, IIIA), annex 14 (Class IVA) and annex 16 (Class IB).

       7.2. Depending on the nature of the materials of which the retro-reflecting