Document GRE/2016/10 proposed to refine the transitional provisions of UN R48 pursuant to possibilities for the application of the regulation within the International Whole Vehicle Type Approval system. Since IWVTA allows for approvals to earlier versions of current regulations, the possibility exists where optional installation of advanced equipment could entail mandatory compliance with the latest version of UN R48. However, UN R48 imposes broad requirements such that efforts to add certain safety equipment are hindered by concerns over compliance with a broad range of requirements under the latest version of UN R48 that raises the consumer price to prohibitive levels. Therefore, OICA supports the solution proposed by GTB (document GRE/2016/10).