26. The expert from Spain sought the advice of GRSG on the possibility to type approve a taximeter that is integrated into the indirect vision device of Class I (taximeter visible for the passenger) and that maintains the function of an interior mirror for the driver (GRSG-113-28). A number of GRSG experts were of the opinion that a type approval according to UN Regulation No. 46 as a separate technical unit would not be sufficient. The installation of such a device for indirect vision would need to be covered, in addition, by an approval granted to the vehicle manufacturer only. The expert from Germany explained that, for the after-market in Germany, a national approval for the installation of a device for indirect vision might be granted to the manufacturer of the device for indirect vision, if its installation is in line with the respective requirements of UN Regulation No. 46. The GRSG Chair invited all experts to send their written comments to the expert from Spain and suggested further discussion of this subject at other fora, such as the European Union Type Approval Authority Meetings.