| 3.3.1.4. | The UI or the approval mark with the additional symbols, shall be clearly legible and indelible. It may be placed on an inner or outer part (transparent or not) of the lamp which cannot be separated from the transparent part of the lamp emitting the light. In any case the marking shall be visible when the lamp is fitted on the vehicle or when a movable part such as the hood or boot lid or a door is opened. | a0c0 |