33. The expert from OICA presented GRSG-116-27 to clarify the provisions on the required field of indirect vision of different classes of devices, in particular, as concerns the necessity to separate the different fields of vision and to indicate changes in magnification to the driver. The expert from Germany supported the proposal but preferred to add a sentence that indication lines shall not hide information. GRSG noted general support on the revised proposal and agreed to resume consideration of this subject at its next session and requested the secretariat to circulate GRSG-116-27-Rev.1 with an official symbol. GRSG noted GRSG-116-03 with standard ISO 17386.