Document ID: chunk:federal_register_of_legislation:F2023C00919:body:0:p33
Version: federal_register_of_legislation:F2023C00919
Segment Type: other
Provision Reference: 
Character Range: 103423–106721

lamps, if they exist, the side-marker lamps, if they exist, and the rear registration plate lamp can only be switched ON and OFF simultaneously.
5.11.1.                          This condition does not apply:
5.11.1.1.                    When front and rear position lamps are switched ON, as well as side-marker lamps when combined or reciprocally incorporated with said lamps, as parking lamps; or
5.11.1.2.                    When side-marker lamps flash in conjunction with direction indicators; or
5.11.1.3.                    When light signalling system operates according to 6.2.7.6.2.
5.11.2.                          To front position lamps when their function is substituted under the provisions of paragraph 5.12.1. below.
5.11.3.                          In the case of an interdependent lamp system, all light sources shall be switched ON and OFF simultaneously.
5.12.                                The electrical connections shall be such that the main beam and dipped beam headlamps and the front fog lamps cannot be switched on unless the lamps referred to in paragraph 5.11. are also switched on. This requirement shall not apply, however, to main-beam or dipped-beam headlamps when their luminous warnings consist of the intermittent lighting up at short intervals of the main-beam headlamp or the intermittent lighting up at short intervals of the dipped-beam headlamp or the alternate lighting up at short intervals of the main-beam and dipped-beam headlamps.
5.12.1.                          The dipped-beam headlamps and/or the main-beam headlamps and/or the front fog lamps may substitute the function of the front position lamps, provided that:
5.12.1.1.                    Their electrical connections are such that in case of failure of any of these lighting devices the front position lamps are automatically re-activated; and
5.12.1.2.                    The substituting lamp/function meets, for the respective position lamp, the requirements concerning:
             (a) The geometric visibility prescribed for the front position lamps in 6.9.5; and
             (b) The minimum photometric values according to the angles of light distribution; and
5.12.1.3.                    Appropriate evidence demonstrating compliance with the requirements indicated in paragraph 5.12.1.2. above is provided in the test reports of the substituting lamp.
5.13.                                Tell-tale
Where a closed-circuit tell-tale is prescribed by this Regulation it may be replaced by an "operating" tell-tale.
5.14.                                Concealable lamps
5.14.1.                          The concealment of lamps shall be prohibited, with the exception of the main beam headlamps, the dipped beam headlamps and the front fog lamps, which may be concealed when they are not in use.
5.14.2.                          In the event of any failure affecting the operation of the concealment device(s) the lamps shall remain in the position of use, if already in use, or shall be capable of being moved into the position of use without the aid of tools.
5.14.3.                          It shall be possible to move the lamps into the position of use and to switch them on by means of a single control, without excluding the possibility of moving them into the position