| (iv) If the applicant declares that the headlamp is to be used with only the passing-beam lit or only the driving-beam(s)[2] lit or only the front fog lamp[2] lit at a time, the test shall be carried out in accordance with this condition, activating1 successively the principal passing-beam one third of the time, the driving-beam(s) one third of the time and the front fog lamp for one third of the time specified in paragraph 2.1. | a0c0 |