UN R107 requires the installation of driver seat with suspension systems. This IRU proposal, based on the earlier informal proposal GRSG-99-22, would exempt Class I urban buses from this requirement in UN R107.
7. The expert from IRU presented ECE/TRANS/WP.29/GRSG/2012/12 proposing to install in urban buses of Class I driver seats without suspension systems. GRSG noted that the choice of driver seats with or without suspension should be made by the manufacturer and operator. The expert from France and Germany raised study reservations. GRSG could not find an agreement on the proposal and agreed to resume consideration of this subject at its next session.